Home / 8,377.43-12,561.84-4,430.81

Finding the Fourth Proportional to 8,377.43, 12,561.84 and 4,430.81

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Solution

The fourth proportional to 8,377.43, 12,561.84 and 4,430.81 is: 6,643.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,377.43 : 12,561.84 = 4,430.81 : x
  2. Step 2: Convert to fraction form
    8,377.43/12,561.84 = 4,430.81/x
  3. Step 3: Cross multiply
    8,377.43x = 12,561.84 × 4,430.81
  4. Step 4: Simplify right side
    8,377.43x = 55,659,157.70
  5. Step 5: Solve for x
    x = 55,659,157.70/8,377.43
  6. Step 6: Final answer
    x = 6,643.95

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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.