Home / 15,473.78-21,305.25-13,654.92

Finding the Fourth Proportional to 15,473.78, 21,305.25 and 13,654.92

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Solution

The fourth proportional to 15,473.78, 21,305.25 and 13,654.92 is: 18,800.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,473.78 : 21,305.25 = 13,654.92 : x
  2. Step 2: Convert to fraction form
    15,473.78/21,305.25 = 13,654.92/x
  3. Step 3: Cross multiply
    15,473.78x = 21,305.25 × 13,654.92
  4. Step 4: Simplify right side
    15,473.78x = 290,921,484.33
  5. Step 5: Solve for x
    x = 290,921,484.33/15,473.78
  6. Step 6: Final answer
    x = 18,800.94

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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.