Home / 15,917.66-23,875.88-5,388.47

Finding the Fourth Proportional to 15,917.66, 23,875.88 and 5,388.47

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Solution

The fourth proportional to 15,917.66, 23,875.88 and 5,388.47 is: 8,082.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,917.66 : 23,875.88 = 5,388.47 : x
  2. Step 2: Convert to fraction form
    15,917.66/23,875.88 = 5,388.47/x
  3. Step 3: Cross multiply
    15,917.66x = 23,875.88 × 5,388.47
  4. Step 4: Simplify right side
    15,917.66x = 128,654,316.78
  5. Step 5: Solve for x
    x = 128,654,316.78/15,917.66
  6. Step 6: Final answer
    x = 8,082.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.