Home / 10,218.86-15,320.08-5,773.78

Finding the Fourth Proportional to 10,218.86, 15,320.08 and 5,773.78

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Solution

The fourth proportional to 10,218.86, 15,320.08 and 5,773.78 is: 8,656.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,218.86 : 15,320.08 = 5,773.78 : x
  2. Step 2: Convert to fraction form
    10,218.86/15,320.08 = 5,773.78/x
  3. Step 3: Cross multiply
    10,218.86x = 15,320.08 × 5,773.78
  4. Step 4: Simplify right side
    10,218.86x = 88,454,840.96
  5. Step 5: Solve for x
    x = 88,454,840.96/10,218.86
  6. Step 6: Final answer
    x = 8,656.04

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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.