Home / 8,759.16-12,087.65-4,780.31

Finding the Fourth Proportional to 8,759.16, 12,087.65 and 4,780.31

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Solution

The fourth proportional to 8,759.16, 12,087.65 and 4,780.31 is: 6,596.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,759.16 : 12,087.65 = 4,780.31 : x
  2. Step 2: Convert to fraction form
    8,759.16/12,087.65 = 4,780.31/x
  3. Step 3: Cross multiply
    8,759.16x = 12,087.65 × 4,780.31
  4. Step 4: Simplify right side
    8,759.16x = 57,782,629.83
  5. Step 5: Solve for x
    x = 57,782,629.83/8,759.16
  6. Step 6: Final answer
    x = 6,596.82

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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.