Home / 14,091.40-21,118.76-5,761.90

Finding the Fourth Proportional to 14,091.40, 21,118.76 and 5,761.90

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Solution

The fourth proportional to 14,091.40, 21,118.76 and 5,761.90 is: 8,635.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,091.40 : 21,118.76 = 5,761.90 : x
  2. Step 2: Convert to fraction form
    14,091.40/21,118.76 = 5,761.90/x
  3. Step 3: Cross multiply
    14,091.40x = 21,118.76 × 5,761.90
  4. Step 4: Simplify right side
    14,091.40x = 121,684,183.24
  5. Step 5: Solve for x
    x = 121,684,183.24/14,091.40
  6. Step 6: Final answer
    x = 8,635.35

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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.