Home / 7,487.20-11,218.65-4,708.90

Finding the Fourth Proportional to 7,487.20, 11,218.65 and 4,708.90

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Solution

The fourth proportional to 7,487.20, 11,218.65 and 4,708.90 is: 7,055.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,487.20 : 11,218.65 = 4,708.90 : x
  2. Step 2: Convert to fraction form
    7,487.20/11,218.65 = 4,708.90/x
  3. Step 3: Cross multiply
    7,487.20x = 11,218.65 × 4,708.90
  4. Step 4: Simplify right side
    7,487.20x = 52,827,500.99
  5. Step 5: Solve for x
    x = 52,827,500.99/7,487.20
  6. Step 6: Final answer
    x = 7,055.71

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1.5x scale

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.