Home / 12,585.92-18,872.40-4,685.18

Finding the Fourth Proportional to 12,585.92, 18,872.40 and 4,685.18

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Solution

The fourth proportional to 12,585.92, 18,872.40 and 4,685.18 is: 7,025.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,585.92 : 18,872.40 = 4,685.18 : x
  2. Step 2: Convert to fraction form
    12,585.92/18,872.40 = 4,685.18/x
  3. Step 3: Cross multiply
    12,585.92x = 18,872.40 × 4,685.18
  4. Step 4: Simplify right side
    12,585.92x = 88,420,591.03
  5. Step 5: Solve for x
    x = 88,420,591.03/12,585.92
  6. Step 6: Final answer
    x = 7,025.36

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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.