Home / 7,318.38-10,100.16-4,487.61

Finding the Fourth Proportional to 7,318.38, 10,100.16 and 4,487.61

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Solution

The fourth proportional to 7,318.38, 10,100.16 and 4,487.61 is: 6,193.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,318.38 : 10,100.16 = 4,487.61 : x
  2. Step 2: Convert to fraction form
    7,318.38/10,100.16 = 4,487.61/x
  3. Step 3: Cross multiply
    7,318.38x = 10,100.16 × 4,487.61
  4. Step 4: Simplify right side
    7,318.38x = 45,325,579.02
  5. Step 5: Solve for x
    x = 45,325,579.02/7,318.38
  6. Step 6: Final answer
    x = 6,193.39

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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.