Home / 8,411.20-11,618.88-7,527.04

Finding the Fourth Proportional to 8,411.20, 11,618.88 and 7,527.04

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Solution

The fourth proportional to 8,411.20, 11,618.88 and 7,527.04 is: 10,397.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,411.20 : 11,618.88 = 7,527.04 : x
  2. Step 2: Convert to fraction form
    8,411.20/11,618.88 = 7,527.04/x
  3. Step 3: Cross multiply
    8,411.20x = 11,618.88 × 7,527.04
  4. Step 4: Simplify right side
    8,411.20x = 87,455,774.52
  5. Step 5: Solve for x
    x = 87,455,774.52/8,411.20
  6. Step 6: Final answer
    x = 10,397.54

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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.