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Finding the Fourth Proportional to 15,999.10, 23,987.85 and 8,503.90

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Solution

The fourth proportional to 15,999.10, 23,987.85 and 8,503.90 is: 12,750.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,999.10 : 23,987.85 = 8,503.90 : x
  2. Step 2: Convert to fraction form
    15,999.10/23,987.85 = 8,503.90/x
  3. Step 3: Cross multiply
    15,999.10x = 23,987.85 × 8,503.90
  4. Step 4: Simplify right side
    15,999.10x = 203,990,277.62
  5. Step 5: Solve for x
    x = 203,990,277.62/15,999.10
  6. Step 6: Final answer
    x = 12,750.11

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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.