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Finding the Fourth Proportional to 12,348.28, 18,498.93 and 7,653.52

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Solution

The fourth proportional to 12,348.28, 18,498.93 and 7,653.52 is: 11,465.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,348.28 : 18,498.93 = 7,653.52 : x
  2. Step 2: Convert to fraction form
    12,348.28/18,498.93 = 7,653.52/x
  3. Step 3: Cross multiply
    12,348.28x = 18,498.93 × 7,653.52
  4. Step 4: Simplify right side
    12,348.28x = 141,581,930.73
  5. Step 5: Solve for x
    x = 141,581,930.73/12,348.28
  6. Step 6: Final answer
    x = 11,465.72

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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.