Home / 15,284.52-21,088.80-8,995.68

Finding the Fourth Proportional to 15,284.52, 21,088.80 and 8,995.68

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Solution

The fourth proportional to 15,284.52, 21,088.80 and 8,995.68 is: 12,411.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,284.52 : 21,088.80 = 8,995.68 : x
  2. Step 2: Convert to fraction form
    15,284.52/21,088.80 = 8,995.68/x
  3. Step 3: Cross multiply
    15,284.52x = 21,088.80 × 8,995.68
  4. Step 4: Simplify right side
    15,284.52x = 189,708,096.38
  5. Step 5: Solve for x
    x = 189,708,096.38/15,284.52
  6. Step 6: Final answer
    x = 12,411.78

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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.