Home / 15,461.84-21,331.50-9,088.71

Finding the Fourth Proportional to 15,461.84, 21,331.50 and 9,088.71

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Solution

The fourth proportional to 15,461.84, 21,331.50 and 9,088.71 is: 12,538.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,461.84 : 21,331.50 = 9,088.71 : x
  2. Step 2: Convert to fraction form
    15,461.84/21,331.50 = 9,088.71/x
  3. Step 3: Cross multiply
    15,461.84x = 21,331.50 × 9,088.71
  4. Step 4: Simplify right side
    15,461.84x = 193,875,754.41
  5. Step 5: Solve for x
    x = 193,875,754.41/15,461.84
  6. Step 6: Final answer
    x = 12,538.99

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Half scale
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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.