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Finding the Fourth Proportional to 15,319.67, 22,986.02 and 8,657.09

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Solution

The fourth proportional to 15,319.67, 22,986.02 and 8,657.09 is: 12,989.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,319.67 : 22,986.02 = 8,657.09 : x
  2. Step 2: Convert to fraction form
    15,319.67/22,986.02 = 8,657.09/x
  3. Step 3: Cross multiply
    15,319.67x = 22,986.02 × 8,657.09
  4. Step 4: Simplify right side
    15,319.67x = 198,991,950.59
  5. Step 5: Solve for x
    x = 198,991,950.59/15,319.67
  6. Step 6: Final answer
    x = 12,989.31

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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.