Home / 8,153.19-11,251.37-4,427.19

Finding the Fourth Proportional to 8,153.19, 11,251.37 and 4,427.19

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Solution

The fourth proportional to 8,153.19, 11,251.37 and 4,427.19 is: 6,109.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,153.19 : 11,251.37 = 4,427.19 : x
  2. Step 2: Convert to fraction form
    8,153.19/11,251.37 = 4,427.19/x
  3. Step 3: Cross multiply
    8,153.19x = 11,251.37 × 4,427.19
  4. Step 4: Simplify right side
    8,153.19x = 49,811,963.82
  5. Step 5: Solve for x
    x = 49,811,963.82/8,153.19
  6. Step 6: Final answer
    x = 6,109.51

Related Problems

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Half scale
Find fourth proportional to 16,306.38, 22,502.75 and 8,854.38
Double scale
Find fourth proportional to 8,154.19, 11,252.75 and 4,428.19
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.