Home / 13,049.74-18,001.11-8,328.70

Finding the Fourth Proportional to 13,049.74, 18,001.11 and 8,328.70

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Solution

The fourth proportional to 13,049.74, 18,001.11 and 8,328.70 is: 11,488.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,049.74 : 18,001.11 = 8,328.70 : x
  2. Step 2: Convert to fraction form
    13,049.74/18,001.11 = 8,328.70/x
  3. Step 3: Cross multiply
    13,049.74x = 18,001.11 × 8,328.70
  4. Step 4: Simplify right side
    13,049.74x = 149,925,844.86
  5. Step 5: Solve for x
    x = 149,925,844.86/13,049.74
  6. Step 6: Final answer
    x = 11,488.80

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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.