Home / 8,439.18-12,606.15-6,252.18

Finding the Fourth Proportional to 8,439.18, 12,606.15 and 6,252.18

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Solution

The fourth proportional to 8,439.18, 12,606.15 and 6,252.18 is: 9,339.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,439.18 : 12,606.15 = 6,252.18 : x
  2. Step 2: Convert to fraction form
    8,439.18/12,606.15 = 6,252.18/x
  3. Step 3: Cross multiply
    8,439.18x = 12,606.15 × 6,252.18
  4. Step 4: Simplify right side
    8,439.18x = 78,815,918.91
  5. Step 5: Solve for x
    x = 78,815,918.91/8,439.18
  6. Step 6: Final answer
    x = 9,339.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.