Home / 8,904.85-12,286.62-5,319.12

Finding the Fourth Proportional to 8,904.85, 12,286.62 and 5,319.12

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Solution

The fourth proportional to 8,904.85, 12,286.62 and 5,319.12 is: 7,339.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,904.85 : 12,286.62 = 5,319.12 : x
  2. Step 2: Convert to fraction form
    8,904.85/12,286.62 = 5,319.12/x
  3. Step 3: Cross multiply
    8,904.85x = 12,286.62 × 5,319.12
  4. Step 4: Simplify right side
    8,904.85x = 65,354,006.17
  5. Step 5: Solve for x
    x = 65,354,006.17/8,904.85
  6. Step 6: Final answer
    x = 7,339.15

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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.