Home / 12,321.18-18,491.36-8,599.23

Finding the Fourth Proportional to 12,321.18, 18,491.36 and 8,599.23

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Solution

The fourth proportional to 12,321.18, 18,491.36 and 8,599.23 is: 12,905.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,321.18 : 18,491.36 = 8,599.23 : x
  2. Step 2: Convert to fraction form
    12,321.18/18,491.36 = 8,599.23/x
  3. Step 3: Cross multiply
    12,321.18x = 18,491.36 × 8,599.23
  4. Step 4: Simplify right side
    12,321.18x = 159,011,414.66
  5. Step 5: Solve for x
    x = 159,011,414.66/12,321.18
  6. Step 6: Final answer
    x = 12,905.53

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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.