Home / 18,471.03-25,490.16-10,513.86

Finding the Fourth Proportional to 18,471.03, 25,490.16 and 10,513.86

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Solution

The fourth proportional to 18,471.03, 25,490.16 and 10,513.86 is: 14,509.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,471.03 : 25,490.16 = 10,513.86 : x
  2. Step 2: Convert to fraction form
    18,471.03/25,490.16 = 10,513.86/x
  3. Step 3: Cross multiply
    18,471.03x = 25,490.16 × 10,513.86
  4. Step 4: Simplify right side
    18,471.03x = 267,999,973.62
  5. Step 5: Solve for x
    x = 267,999,973.62/18,471.03
  6. Step 6: Final answer
    x = 14,509.21

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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.