Home / 7,155.28-10,711.56-6,404.44

Finding the Fourth Proportional to 7,155.28, 10,711.56 and 6,404.44

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Solution

The fourth proportional to 7,155.28, 10,711.56 and 6,404.44 is: 9,587.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,155.28 : 10,711.56 = 6,404.44 : x
  2. Step 2: Convert to fraction form
    7,155.28/10,711.56 = 6,404.44/x
  3. Step 3: Cross multiply
    7,155.28x = 10,711.56 × 6,404.44
  4. Step 4: Simplify right side
    7,155.28x = 68,601,543.33
  5. Step 5: Solve for x
    x = 68,601,543.33/7,155.28
  6. Step 6: Final answer
    x = 9,587.54

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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.