Home / 10,132.80-14,049.60-9,614.40

Finding the Fourth Proportional to 10,132.80, 14,049.60 and 9,614.40

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Solution

The fourth proportional to 10,132.80, 14,049.60 and 9,614.40 is: 13,330.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,132.80 : 14,049.60 = 9,614.40 : x
  2. Step 2: Convert to fraction form
    10,132.80/14,049.60 = 9,614.40/x
  3. Step 3: Cross multiply
    10,132.80x = 14,049.60 × 9,614.40
  4. Step 4: Simplify right side
    10,132.80x = 135,078,474.24
  5. Step 5: Solve for x
    x = 135,078,474.24/10,132.80
  6. Step 6: Final answer
    x = 13,330.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.