Home / 9,117.62-12,603.57-8,132.66

Finding the Fourth Proportional to 9,117.62, 12,603.57 and 8,132.66

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Solution

The fourth proportional to 9,117.62, 12,603.57 and 8,132.66 is: 11,242.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,117.62 : 12,603.57 = 8,132.66 : x
  2. Step 2: Convert to fraction form
    9,117.62/12,603.57 = 8,132.66/x
  3. Step 3: Cross multiply
    9,117.62x = 12,603.57 × 8,132.66
  4. Step 4: Simplify right side
    9,117.62x = 102,500,549.60
  5. Step 5: Solve for x
    x = 102,500,549.60/9,117.62
  6. Step 6: Final answer
    x = 11,242.03

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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.