Home / 12,531.11-18,776.16-7,585.76

Finding the Fourth Proportional to 12,531.11, 18,776.16 and 7,585.76

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Solution

The fourth proportional to 12,531.11, 18,776.16 and 7,585.76 is: 11,366.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,531.11 : 18,776.16 = 7,585.76 : x
  2. Step 2: Convert to fraction form
    12,531.11/18,776.16 = 7,585.76/x
  3. Step 3: Cross multiply
    12,531.11x = 18,776.16 × 7,585.76
  4. Step 4: Simplify right side
    12,531.11x = 142,431,490.42
  5. Step 5: Solve for x
    x = 142,431,490.42/12,531.11
  6. Step 6: Final answer
    x = 11,366.23

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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.