Home / 14,671.91-20,247.04-8,211.45

Finding the Fourth Proportional to 14,671.91, 20,247.04 and 8,211.45

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Solution

The fourth proportional to 14,671.91, 20,247.04 and 8,211.45 is: 11,331.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,671.91 : 20,247.04 = 8,211.45 : x
  2. Step 2: Convert to fraction form
    14,671.91/20,247.04 = 8,211.45/x
  3. Step 3: Cross multiply
    14,671.91x = 20,247.04 × 8,211.45
  4. Step 4: Simplify right side
    14,671.91x = 166,257,556.61
  5. Step 5: Solve for x
    x = 166,257,556.61/14,671.91
  6. Step 6: Final answer
    x = 11,331.69

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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.