Home / 13,311.93-18,373.66-8,005.72

Finding the Fourth Proportional to 13,311.93, 18,373.66 and 8,005.72

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Solution

The fourth proportional to 13,311.93, 18,373.66 and 8,005.72 is: 11,049.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,311.93 : 18,373.66 = 8,005.72 : x
  2. Step 2: Convert to fraction form
    13,311.93/18,373.66 = 8,005.72/x
  3. Step 3: Cross multiply
    13,311.93x = 18,373.66 × 8,005.72
  4. Step 4: Simplify right side
    13,311.93x = 147,094,377.34
  5. Step 5: Solve for x
    x = 147,094,377.34/13,311.93
  6. Step 6: Final answer
    x = 11,049.82

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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.