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Finding the Fourth Proportional to 16,829.19, 25,259.45 and 8,515.12

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Solution

The fourth proportional to 16,829.19, 25,259.45 and 8,515.12 is: 12,780.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,829.19 : 25,259.45 = 8,515.12 : x
  2. Step 2: Convert to fraction form
    16,829.19/25,259.45 = 8,515.12/x
  3. Step 3: Cross multiply
    16,829.19x = 25,259.45 × 8,515.12
  4. Step 4: Simplify right side
    16,829.19x = 215,087,225.65
  5. Step 5: Solve for x
    x = 215,087,225.65/16,829.19
  6. Step 6: Final answer
    x = 12,780.60

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