Home / 7,497.90-11,253.68-3,990.86

Finding the Fourth Proportional to 7,497.90, 11,253.68 and 3,990.86

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Solution

The fourth proportional to 7,497.90, 11,253.68 and 3,990.86 is: 5,989.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,497.90 : 11,253.68 = 3,990.86 : x
  2. Step 2: Convert to fraction form
    7,497.90/11,253.68 = 3,990.86/x
  3. Step 3: Cross multiply
    7,497.90x = 11,253.68 × 3,990.86
  4. Step 4: Simplify right side
    7,497.90x = 44,911,805.10
  5. Step 5: Solve for x
    x = 44,911,805.10/7,497.90
  6. Step 6: Final answer
    x = 5,989.92

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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.