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Finding the Fourth Proportional to 8,771.16, 13,138.04 and 7,098.12

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Solution

The fourth proportional to 8,771.16, 13,138.04 and 7,098.12 is: 10,632.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,771.16 : 13,138.04 = 7,098.12 : x
  2. Step 2: Convert to fraction form
    8,771.16/13,138.04 = 7,098.12/x
  3. Step 3: Cross multiply
    8,771.16x = 13,138.04 × 7,098.12
  4. Step 4: Simplify right side
    8,771.16x = 93,255,384.48
  5. Step 5: Solve for x
    x = 93,255,384.48/8,771.16
  6. Step 6: Final answer
    x = 10,632.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.