Home / 15,425.97-21,288.05-9,374.49

Finding the Fourth Proportional to 15,425.97, 21,288.05 and 9,374.49

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Solution

The fourth proportional to 15,425.97, 21,288.05 and 9,374.49 is: 12,936.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,425.97 : 21,288.05 = 9,374.49 : x
  2. Step 2: Convert to fraction form
    15,425.97/21,288.05 = 9,374.49/x
  3. Step 3: Cross multiply
    15,425.97x = 21,288.05 × 9,374.49
  4. Step 4: Simplify right side
    15,425.97x = 199,564,564.97
  5. Step 5: Solve for x
    x = 199,564,564.97/15,425.97
  6. Step 6: Final answer
    x = 12,936.92

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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.