Home / 19,347.76-28,963.32-12,753.28

Finding the Fourth Proportional to 19,347.76, 28,963.32 and 12,753.28

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Solution

The fourth proportional to 19,347.76, 28,963.32 and 12,753.28 is: 19,091.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,347.76 : 28,963.32 = 12,753.28 : x
  2. Step 2: Convert to fraction form
    19,347.76/28,963.32 = 12,753.28/x
  3. Step 3: Cross multiply
    19,347.76x = 28,963.32 × 12,753.28
  4. Step 4: Simplify right side
    19,347.76x = 369,377,329.69
  5. Step 5: Solve for x
    x = 369,377,329.69/19,347.76
  6. Step 6: Final answer
    x = 19,091.48

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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.