Home / 9,320.10-12,863.58-5,343.90

Finding the Fourth Proportional to 9,320.10, 12,863.58 and 5,343.90

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Solution

The fourth proportional to 9,320.10, 12,863.58 and 5,343.90 is: 7,375.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,320.10 : 12,863.58 = 5,343.90 : x
  2. Step 2: Convert to fraction form
    9,320.10/12,863.58 = 5,343.90/x
  3. Step 3: Cross multiply
    9,320.10x = 12,863.58 × 5,343.90
  4. Step 4: Simplify right side
    9,320.10x = 68,741,685.16
  5. Step 5: Solve for x
    x = 68,741,685.16/9,320.10
  6. Step 6: Final answer
    x = 7,375.64

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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.