Home / 15,553.18-21,454.72-10,775.92

Finding the Fourth Proportional to 15,553.18, 21,454.72 and 10,775.92

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Solution

The fourth proportional to 15,553.18, 21,454.72 and 10,775.92 is: 14,864.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,553.18 : 21,454.72 = 10,775.92 : x
  2. Step 2: Convert to fraction form
    15,553.18/21,454.72 = 10,775.92/x
  3. Step 3: Cross multiply
    15,553.18x = 21,454.72 × 10,775.92
  4. Step 4: Simplify right side
    15,553.18x = 231,194,185.19
  5. Step 5: Solve for x
    x = 231,194,185.19/15,553.18
  6. Step 6: Final answer
    x = 14,864.76

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1.5x scale

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.