Home / 11,175.01-15,421.67-6,139.69

Finding the Fourth Proportional to 11,175.01, 15,421.67 and 6,139.69

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Solution

The fourth proportional to 11,175.01, 15,421.67 and 6,139.69 is: 8,472.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,175.01 : 15,421.67 = 6,139.69 : x
  2. Step 2: Convert to fraction form
    11,175.01/15,421.67 = 6,139.69/x
  3. Step 3: Cross multiply
    11,175.01x = 15,421.67 × 6,139.69
  4. Step 4: Simplify right side
    11,175.01x = 94,684,203.83
  5. Step 5: Solve for x
    x = 94,684,203.83/11,175.01
  6. Step 6: Final answer
    x = 8,472.85

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Half scale
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Double scale
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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.