Home / 8,739.12-12,059.55-4,759.99

Finding the Fourth Proportional to 8,739.12, 12,059.55 and 4,759.99

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Solution

The fourth proportional to 8,739.12, 12,059.55 and 4,759.99 is: 6,568.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,739.12 : 12,059.55 = 4,759.99 : x
  2. Step 2: Convert to fraction form
    8,739.12/12,059.55 = 4,759.99/x
  3. Step 3: Cross multiply
    8,739.12x = 12,059.55 × 4,759.99
  4. Step 4: Simplify right side
    8,739.12x = 57,403,337.40
  5. Step 5: Solve for x
    x = 57,403,337.40/8,739.12
  6. Step 6: Final answer
    x = 6,568.55

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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.