Home / 12,937.65-17,853.90-7,272.56

Finding the Fourth Proportional to 12,937.65, 17,853.90 and 7,272.56

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Solution

The fourth proportional to 12,937.65, 17,853.90 and 7,272.56 is: 10,036.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,937.65 : 17,853.90 = 7,272.56 : x
  2. Step 2: Convert to fraction form
    12,937.65/17,853.90 = 7,272.56/x
  3. Step 3: Cross multiply
    12,937.65x = 17,853.90 × 7,272.56
  4. Step 4: Simplify right side
    12,937.65x = 129,843,469.71
  5. Step 5: Solve for x
    x = 129,843,469.71/12,937.65
  6. Step 6: Final answer
    x = 10,036.09

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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.