Home / 6,381.41-9,559.35-4,987.80

Finding the Fourth Proportional to 6,381.41, 9,559.35 and 4,987.80

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Solution

The fourth proportional to 6,381.41, 9,559.35 and 4,987.80 is: 7,471.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,381.41 : 9,559.35 = 4,987.80 : x
  2. Step 2: Convert to fraction form
    6,381.41/9,559.35 = 4,987.80/x
  3. Step 3: Cross multiply
    6,381.41x = 9,559.35 × 4,987.80
  4. Step 4: Simplify right side
    6,381.41x = 47,680,125.93
  5. Step 5: Solve for x
    x = 47,680,125.93/6,381.41
  6. Step 6: Final answer
    x = 7,471.73

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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.