Home / 14,767.75-20,379.90-8,480.53

Finding the Fourth Proportional to 14,767.75, 20,379.90 and 8,480.53

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Solution

The fourth proportional to 14,767.75, 20,379.90 and 8,480.53 is: 11,703.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,767.75 : 20,379.90 = 8,480.53 : x
  2. Step 2: Convert to fraction form
    14,767.75/20,379.90 = 8,480.53/x
  3. Step 3: Cross multiply
    14,767.75x = 20,379.90 × 8,480.53
  4. Step 4: Simplify right side
    14,767.75x = 172,832,353.35
  5. Step 5: Solve for x
    x = 172,832,353.35/14,767.75
  6. Step 6: Final answer
    x = 11,703.36

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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.