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Finding the Fourth Proportional to 15,162.48, 20,924.04 and 8,448.12

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Solution

The fourth proportional to 15,162.48, 20,924.04 and 8,448.12 is: 11,658.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,162.48 : 20,924.04 = 8,448.12 : x
  2. Step 2: Convert to fraction form
    15,162.48/20,924.04 = 8,448.12/x
  3. Step 3: Cross multiply
    15,162.48x = 20,924.04 × 8,448.12
  4. Step 4: Simplify right side
    15,162.48x = 176,768,800.80
  5. Step 5: Solve for x
    x = 176,768,800.80/15,162.48
  6. Step 6: Final answer
    x = 11,658.30

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.