Home / 12,248.73-16,911.18-7,717.95

Finding the Fourth Proportional to 12,248.73, 16,911.18 and 7,717.95

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Solution

The fourth proportional to 12,248.73, 16,911.18 and 7,717.95 is: 10,655.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,248.73 : 16,911.18 = 7,717.95 : x
  2. Step 2: Convert to fraction form
    12,248.73/16,911.18 = 7,717.95/x
  3. Step 3: Cross multiply
    12,248.73x = 16,911.18 × 7,717.95
  4. Step 4: Simplify right side
    12,248.73x = 130,519,641.68
  5. Step 5: Solve for x
    x = 130,519,641.68/12,248.73
  6. Step 6: Final answer
    x = 10,655.77

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Why These Related Problems?

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