Home / 9,147.60-12,622.01-5,370.92

Finding the Fourth Proportional to 9,147.60, 12,622.01 and 5,370.92

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Solution

The fourth proportional to 9,147.60, 12,622.01 and 5,370.92 is: 7,410.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,147.60 : 12,622.01 = 5,370.92 : x
  2. Step 2: Convert to fraction form
    9,147.60/12,622.01 = 5,370.92/x
  3. Step 3: Cross multiply
    9,147.60x = 12,622.01 × 5,370.92
  4. Step 4: Simplify right side
    9,147.60x = 67,791,805.95
  5. Step 5: Solve for x
    x = 67,791,805.95/9,147.60
  6. Step 6: Final answer
    x = 7,410.88

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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.