Home / 12,331.28-18,475.39-10,264.57

Finding the Fourth Proportional to 12,331.28, 18,475.39 and 10,264.57

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Solution

The fourth proportional to 12,331.28, 18,475.39 and 10,264.57 is: 15,378.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,331.28 : 18,475.39 = 10,264.57 : x
  2. Step 2: Convert to fraction form
    12,331.28/18,475.39 = 10,264.57/x
  3. Step 3: Cross multiply
    12,331.28x = 18,475.39 × 10,264.57
  4. Step 4: Simplify right side
    12,331.28x = 189,641,933.93
  5. Step 5: Solve for x
    x = 189,641,933.93/12,331.28
  6. Step 6: Final answer
    x = 15,378.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.