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Finding the Fourth Proportional to 8,830.74, 13,248.12 and 2,987.26

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Solution

The fourth proportional to 8,830.74, 13,248.12 and 2,987.26 is: 4,481.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,830.74 : 13,248.12 = 2,987.26 : x
  2. Step 2: Convert to fraction form
    8,830.74/13,248.12 = 2,987.26/x
  3. Step 3: Cross multiply
    8,830.74x = 13,248.12 × 2,987.26
  4. Step 4: Simplify right side
    8,830.74x = 39,575,578.95
  5. Step 5: Solve for x
    x = 39,575,578.95/8,830.74
  6. Step 6: Final answer
    x = 4,481.57

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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.