Home / 12,341.28-17,033.04-9,708.78

Finding the Fourth Proportional to 12,341.28, 17,033.04 and 9,708.78

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Solution

The fourth proportional to 12,341.28, 17,033.04 and 9,708.78 is: 13,399.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,341.28 : 17,033.04 = 9,708.78 : x
  2. Step 2: Convert to fraction form
    12,341.28/17,033.04 = 9,708.78/x
  3. Step 3: Cross multiply
    12,341.28x = 17,033.04 × 9,708.78
  4. Step 4: Simplify right side
    12,341.28x = 165,369,989.55
  5. Step 5: Solve for x
    x = 165,369,989.55/12,341.28
  6. Step 6: Final answer
    x = 13,399.74

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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.