Home / 8,812.24-13,220.39-5,117.56

Finding the Fourth Proportional to 8,812.24, 13,220.39 and 5,117.56

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Solution

The fourth proportional to 8,812.24, 13,220.39 and 5,117.56 is: 7,677.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,812.24 : 13,220.39 = 5,117.56 : x
  2. Step 2: Convert to fraction form
    8,812.24/13,220.39 = 5,117.56/x
  3. Step 3: Cross multiply
    8,812.24x = 13,220.39 × 5,117.56
  4. Step 4: Simplify right side
    8,812.24x = 67,656,139.05
  5. Step 5: Solve for x
    x = 67,656,139.05/8,812.24
  6. Step 6: Final answer
    x = 7,677.52

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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.