Home / 15,501.16-21,391.75-8,427.73

Finding the Fourth Proportional to 15,501.16, 21,391.75 and 8,427.73

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Solution

The fourth proportional to 15,501.16, 21,391.75 and 8,427.73 is: 11,630.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,501.16 : 21,391.75 = 8,427.73 : x
  2. Step 2: Convert to fraction form
    15,501.16/21,391.75 = 8,427.73/x
  3. Step 3: Cross multiply
    15,501.16x = 21,391.75 × 8,427.73
  4. Step 4: Simplify right side
    15,501.16x = 180,283,872.16
  5. Step 5: Solve for x
    x = 180,283,872.16/15,501.16
  6. Step 6: Final answer
    x = 11,630.35

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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.