Home / 12,637.56-17,439.89-6,972.38

Finding the Fourth Proportional to 12,637.56, 17,439.89 and 6,972.38

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Solution

The fourth proportional to 12,637.56, 17,439.89 and 6,972.38 is: 9,621.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,637.56 : 17,439.89 = 6,972.38 : x
  2. Step 2: Convert to fraction form
    12,637.56/17,439.89 = 6,972.38/x
  3. Step 3: Cross multiply
    12,637.56x = 17,439.89 × 6,972.38
  4. Step 4: Simplify right side
    12,637.56x = 121,597,470.47
  5. Step 5: Solve for x
    x = 121,597,470.47/12,637.56
  6. Step 6: Final answer
    x = 9,621.91

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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.