Home / 8,989.30-12,397.21-5,446.36

Finding the Fourth Proportional to 8,989.30, 12,397.21 and 5,446.36

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Solution

The fourth proportional to 8,989.30, 12,397.21 and 5,446.36 is: 7,511.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,989.30 : 12,397.21 = 5,446.36 : x
  2. Step 2: Convert to fraction form
    8,989.30/12,397.21 = 5,446.36/x
  3. Step 3: Cross multiply
    8,989.30x = 12,397.21 × 5,446.36
  4. Step 4: Simplify right side
    8,989.30x = 67,519,668.66
  5. Step 5: Solve for x
    x = 67,519,668.66/8,989.30
  6. Step 6: Final answer
    x = 7,511.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.