Home / 7,142.60-9,855.61-4,488.13

Finding the Fourth Proportional to 7,142.60, 9,855.61 and 4,488.13

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Solution

The fourth proportional to 7,142.60, 9,855.61 and 4,488.13 is: 6,192.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,142.60 : 9,855.61 = 4,488.13 : x
  2. Step 2: Convert to fraction form
    7,142.60/9,855.61 = 4,488.13/x
  3. Step 3: Cross multiply
    7,142.60x = 9,855.61 × 4,488.13
  4. Step 4: Simplify right side
    7,142.60x = 44,233,209.63
  5. Step 5: Solve for x
    x = 44,233,209.63/7,142.60
  6. Step 6: Final answer
    x = 6,192.88

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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.