Home / 15,344.74-21,176.31-8,630.32

Finding the Fourth Proportional to 15,344.74, 21,176.31 and 8,630.32

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Solution

The fourth proportional to 15,344.74, 21,176.31 and 8,630.32 is: 11,910.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,344.74 : 21,176.31 = 8,630.32 : x
  2. Step 2: Convert to fraction form
    15,344.74/21,176.31 = 8,630.32/x
  3. Step 3: Cross multiply
    15,344.74x = 21,176.31 × 8,630.32
  4. Step 4: Simplify right side
    15,344.74x = 182,758,331.72
  5. Step 5: Solve for x
    x = 182,758,331.72/15,344.74
  6. Step 6: Final answer
    x = 11,910.16

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Double scale
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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.