Home / 12,553.92-18,820.08-5,153.76

Finding the Fourth Proportional to 12,553.92, 18,820.08 and 5,153.76

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Solution

The fourth proportional to 12,553.92, 18,820.08 and 5,153.76 is: 7,726.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,553.92 : 18,820.08 = 5,153.76 : x
  2. Step 2: Convert to fraction form
    12,553.92/18,820.08 = 5,153.76/x
  3. Step 3: Cross multiply
    12,553.92x = 18,820.08 × 5,153.76
  4. Step 4: Simplify right side
    12,553.92x = 96,994,175.50
  5. Step 5: Solve for x
    x = 96,994,175.50/12,553.92
  6. Step 6: Final answer
    x = 7,726.21

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1.5x scale

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.