Home / 10,654.40-15,984.16-4,080.48

Finding the Fourth Proportional to 10,654.40, 15,984.16 and 4,080.48

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Solution

The fourth proportional to 10,654.40, 15,984.16 and 4,080.48 is: 6,121.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,654.40 : 15,984.16 = 4,080.48 : x
  2. Step 2: Convert to fraction form
    10,654.40/15,984.16 = 4,080.48/x
  3. Step 3: Cross multiply
    10,654.40x = 15,984.16 × 4,080.48
  4. Step 4: Simplify right side
    10,654.40x = 65,223,045.20
  5. Step 5: Solve for x
    x = 65,223,045.20/10,654.40
  6. Step 6: Final answer
    x = 6,121.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.