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Finding the Fourth Proportional to 8,851.66, 13,291.59 and 5,156.59

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Solution

The fourth proportional to 8,851.66, 13,291.59 and 5,156.59 is: 7,743.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,851.66 : 13,291.59 = 5,156.59 : x
  2. Step 2: Convert to fraction form
    8,851.66/13,291.59 = 5,156.59/x
  3. Step 3: Cross multiply
    8,851.66x = 13,291.59 × 5,156.59
  4. Step 4: Simplify right side
    8,851.66x = 68,539,280.08
  5. Step 5: Solve for x
    x = 68,539,280.08/8,851.66
  6. Step 6: Final answer
    x = 7,743.10

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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.