Home / 7,773.42-10,720.85-5,644.74

Finding the Fourth Proportional to 7,773.42, 10,720.85 and 5,644.74

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Solution

The fourth proportional to 7,773.42, 10,720.85 and 5,644.74 is: 7,785.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,773.42 : 10,720.85 = 5,644.74 : x
  2. Step 2: Convert to fraction form
    7,773.42/10,720.85 = 5,644.74/x
  3. Step 3: Cross multiply
    7,773.42x = 10,720.85 × 5,644.74
  4. Step 4: Simplify right side
    7,773.42x = 60,516,382.61
  5. Step 5: Solve for x
    x = 60,516,382.61/7,773.42
  6. Step 6: Final answer
    x = 7,785.04

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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.