Home / 8,622.24-12,930.66-5,715.96

Finding the Fourth Proportional to 8,622.24, 12,930.66 and 5,715.96

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Solution

The fourth proportional to 8,622.24, 12,930.66 and 5,715.96 is: 8,572.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,622.24 : 12,930.66 = 5,715.96 : x
  2. Step 2: Convert to fraction form
    8,622.24/12,930.66 = 5,715.96/x
  3. Step 3: Cross multiply
    8,622.24x = 12,930.66 × 5,715.96
  4. Step 4: Simplify right side
    8,622.24x = 73,911,135.33
  5. Step 5: Solve for x
    x = 73,911,135.33/8,622.24
  6. Step 6: Final answer
    x = 8,572.15

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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.