Home / 18,500.64-25,520.49-11,422.02

Finding the Fourth Proportional to 18,500.64, 25,520.49 and 11,422.02

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Solution

The fourth proportional to 18,500.64, 25,520.49 and 11,422.02 is: 15,755.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,500.64 : 25,520.49 = 11,422.02 : x
  2. Step 2: Convert to fraction form
    18,500.64/25,520.49 = 11,422.02/x
  3. Step 3: Cross multiply
    18,500.64x = 25,520.49 × 11,422.02
  4. Step 4: Simplify right side
    18,500.64x = 291,495,547.19
  5. Step 5: Solve for x
    x = 291,495,547.19/18,500.64
  6. Step 6: Final answer
    x = 15,755.97

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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.