Home / 14,346.82-21,480.31-7,311.66

Finding the Fourth Proportional to 14,346.82, 21,480.31 and 7,311.66

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Solution

The fourth proportional to 14,346.82, 21,480.31 and 7,311.66 is: 10,947.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,346.82 : 21,480.31 = 7,311.66 : x
  2. Step 2: Convert to fraction form
    14,346.82/21,480.31 = 7,311.66/x
  3. Step 3: Cross multiply
    14,346.82x = 21,480.31 × 7,311.66
  4. Step 4: Simplify right side
    14,346.82x = 157,056,686.86
  5. Step 5: Solve for x
    x = 157,056,686.86/14,346.82
  6. Step 6: Final answer
    x = 10,947.15

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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.