Home / 8,108.46-12,153.84-5,337.02

Finding the Fourth Proportional to 8,108.46, 12,153.84 and 5,337.02

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Solution

The fourth proportional to 8,108.46, 12,153.84 and 5,337.02 is: 7,999.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,108.46 : 12,153.84 = 5,337.02 : x
  2. Step 2: Convert to fraction form
    8,108.46/12,153.84 = 5,337.02/x
  3. Step 3: Cross multiply
    8,108.46x = 12,153.84 × 5,337.02
  4. Step 4: Simplify right side
    8,108.46x = 64,865,287.16
  5. Step 5: Solve for x
    x = 64,865,287.16/8,108.46
  6. Step 6: Final answer
    x = 7,999.70

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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.