Home / 9,147.76-12,624.14-5,168.90

Finding the Fourth Proportional to 9,147.76, 12,624.14 and 5,168.90

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Solution

The fourth proportional to 9,147.76, 12,624.14 and 5,168.90 is: 7,133.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,147.76 : 12,624.14 = 5,168.90 : x
  2. Step 2: Convert to fraction form
    9,147.76/12,624.14 = 5,168.90/x
  3. Step 3: Cross multiply
    9,147.76x = 12,624.14 × 5,168.90
  4. Step 4: Simplify right side
    9,147.76x = 65,252,917.25
  5. Step 5: Solve for x
    x = 65,252,917.25/9,147.76
  6. Step 6: Final answer
    x = 7,133.21

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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.