Home / 12,585.12-18,877.66-5,651.52

Finding the Fourth Proportional to 12,585.12, 18,877.66 and 5,651.52

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Solution

The fourth proportional to 12,585.12, 18,877.66 and 5,651.52 is: 8,477.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,585.12 : 18,877.66 = 5,651.52 : x
  2. Step 2: Convert to fraction form
    12,585.12/18,877.66 = 5,651.52/x
  3. Step 3: Cross multiply
    12,585.12x = 18,877.66 × 5,651.52
  4. Step 4: Simplify right side
    12,585.12x = 106,687,473.04
  5. Step 5: Solve for x
    x = 106,687,473.04/12,585.12
  6. Step 6: Final answer
    x = 8,477.27

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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.