Home / 8,759.12-13,127.68-4,377.80

Finding the Fourth Proportional to 8,759.12, 13,127.68 and 4,377.80

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Solution

The fourth proportional to 8,759.12, 13,127.68 and 4,377.80 is: 6,561.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,759.12 : 13,127.68 = 4,377.80 : x
  2. Step 2: Convert to fraction form
    8,759.12/13,127.68 = 4,377.80/x
  3. Step 3: Cross multiply
    8,759.12x = 13,127.68 × 4,377.80
  4. Step 4: Simplify right side
    8,759.12x = 57,470,357.50
  5. Step 5: Solve for x
    x = 57,470,357.50/8,759.12
  6. Step 6: Final answer
    x = 6,561.20

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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.