Home / 6,114.40-9,160.80-5,423.20

Finding the Fourth Proportional to 6,114.40, 9,160.80 and 5,423.20

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Solution

The fourth proportional to 6,114.40, 9,160.80 and 5,423.20 is: 8,125.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,114.40 : 9,160.80 = 5,423.20 : x
  2. Step 2: Convert to fraction form
    6,114.40/9,160.80 = 5,423.20/x
  3. Step 3: Cross multiply
    6,114.40x = 9,160.80 × 5,423.20
  4. Step 4: Simplify right side
    6,114.40x = 49,680,850.56
  5. Step 5: Solve for x
    x = 49,680,850.56/6,114.40
  6. Step 6: Final answer
    x = 8,125.22

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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.