Home / 12,143.48-16,757.92-6,766.15

Finding the Fourth Proportional to 12,143.48, 16,757.92 and 6,766.15

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Solution

The fourth proportional to 12,143.48, 16,757.92 and 6,766.15 is: 9,337.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,143.48 : 16,757.92 = 6,766.15 : x
  2. Step 2: Convert to fraction form
    12,143.48/16,757.92 = 6,766.15/x
  3. Step 3: Cross multiply
    12,143.48x = 16,757.92 × 6,766.15
  4. Step 4: Simplify right side
    12,143.48x = 113,386,598.39
  5. Step 5: Solve for x
    x = 113,386,598.39/12,143.48
  6. Step 6: Final answer
    x = 9,337.24

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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.