Home / 7,380.12-10,189.62-4,730.88

Finding the Fourth Proportional to 7,380.12, 10,189.62 and 4,730.88

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Solution

The fourth proportional to 7,380.12, 10,189.62 and 4,730.88 is: 6,531.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,380.12 : 10,189.62 = 4,730.88 : x
  2. Step 2: Convert to fraction form
    7,380.12/10,189.62 = 4,730.88/x
  3. Step 3: Cross multiply
    7,380.12x = 10,189.62 × 4,730.88
  4. Step 4: Simplify right side
    7,380.12x = 48,205,869.47
  5. Step 5: Solve for x
    x = 48,205,869.47/7,380.12
  6. Step 6: Final answer
    x = 6,531.85

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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.