Home / 9,318.72-13,963.44-4,387.20

Finding the Fourth Proportional to 9,318.72, 13,963.44 and 4,387.20

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Solution

The fourth proportional to 9,318.72, 13,963.44 and 4,387.20 is: 6,573.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,318.72 : 13,963.44 = 4,387.20 : x
  2. Step 2: Convert to fraction form
    9,318.72/13,963.44 = 4,387.20/x
  3. Step 3: Cross multiply
    9,318.72x = 13,963.44 × 4,387.20
  4. Step 4: Simplify right side
    9,318.72x = 61,260,403.97
  5. Step 5: Solve for x
    x = 61,260,403.97/9,318.72
  6. Step 6: Final answer
    x = 6,573.91

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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.