Home / 18,538.47-25,583.17-10,040.70

Finding the Fourth Proportional to 18,538.47, 25,583.17 and 10,040.70

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Solution

The fourth proportional to 18,538.47, 25,583.17 and 10,040.70 is: 13,856.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,538.47 : 25,583.17 = 10,040.70 : x
  2. Step 2: Convert to fraction form
    18,538.47/25,583.17 = 10,040.70/x
  3. Step 3: Cross multiply
    18,538.47x = 25,583.17 × 10,040.70
  4. Step 4: Simplify right side
    18,538.47x = 256,872,935.02
  5. Step 5: Solve for x
    x = 256,872,935.02/18,538.47
  6. Step 6: Final answer
    x = 13,856.21

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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.