Home / 8,133.80-11,140.34-7,654.92

Finding the Fourth Proportional to 8,133.80, 11,140.34 and 7,654.92

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Solution

The fourth proportional to 8,133.80, 11,140.34 and 7,654.92 is: 10,484.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,133.80 : 11,140.34 = 7,654.92 : x
  2. Step 2: Convert to fraction form
    8,133.80/11,140.34 = 7,654.92/x
  3. Step 3: Cross multiply
    8,133.80x = 11,140.34 × 7,654.92
  4. Step 4: Simplify right side
    8,133.80x = 85,278,373.20
  5. Step 5: Solve for x
    x = 85,278,373.20/8,133.80
  6. Step 6: Final answer
    x = 10,484.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.