Home / 15,135.67-22,688.88-7,743.61

Finding the Fourth Proportional to 15,135.67, 22,688.88 and 7,743.61

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Solution

The fourth proportional to 15,135.67, 22,688.88 and 7,743.61 is: 11,607.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,135.67 : 22,688.88 = 7,743.61 : x
  2. Step 2: Convert to fraction form
    15,135.67/22,688.88 = 7,743.61/x
  3. Step 3: Cross multiply
    15,135.67x = 22,688.88 × 7,743.61
  4. Step 4: Simplify right side
    15,135.67x = 175,693,838.06
  5. Step 5: Solve for x
    x = 175,693,838.06/15,135.67
  6. Step 6: Final answer
    x = 11,607.93

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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.