Home / 8,622.47-12,908.19-5,324.96

Finding the Fourth Proportional to 8,622.47, 12,908.19 and 5,324.96

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Solution

The fourth proportional to 8,622.47, 12,908.19 and 5,324.96 is: 7,971.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,622.47 : 12,908.19 = 5,324.96 : x
  2. Step 2: Convert to fraction form
    8,622.47/12,908.19 = 5,324.96/x
  3. Step 3: Cross multiply
    8,622.47x = 12,908.19 × 5,324.96
  4. Step 4: Simplify right side
    8,622.47x = 68,735,595.42
  5. Step 5: Solve for x
    x = 68,735,595.42/8,622.47
  6. Step 6: Final answer
    x = 7,971.68

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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.