Home / 8,759.68-12,087.96-4,780.72

Finding the Fourth Proportional to 8,759.68, 12,087.96 and 4,780.72

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Solution

The fourth proportional to 8,759.68, 12,087.96 and 4,780.72 is: 6,597.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,759.68 : 12,087.96 = 4,780.72 : x
  2. Step 2: Convert to fraction form
    8,759.68/12,087.96 = 4,780.72/x
  3. Step 3: Cross multiply
    8,759.68x = 12,087.96 × 4,780.72
  4. Step 4: Simplify right side
    8,759.68x = 57,789,152.13
  5. Step 5: Solve for x
    x = 57,789,152.13/8,759.68
  6. Step 6: Final answer
    x = 6,597.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.