Home / 15,541.17-21,439.45-10,507.12

Finding the Fourth Proportional to 15,541.17, 21,439.45 and 10,507.12

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Solution

The fourth proportional to 15,541.17, 21,439.45 and 10,507.12 is: 14,494.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,541.17 : 21,439.45 = 10,507.12 : x
  2. Step 2: Convert to fraction form
    15,541.17/21,439.45 = 10,507.12/x
  3. Step 3: Cross multiply
    15,541.17x = 21,439.45 × 10,507.12
  4. Step 4: Simplify right side
    15,541.17x = 225,266,873.88
  5. Step 5: Solve for x
    x = 225,266,873.88/15,541.17
  6. Step 6: Final answer
    x = 14,494.85

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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.