Home / 12,742.43-17,584.23-7,077.05

Finding the Fourth Proportional to 12,742.43, 17,584.23 and 7,077.05

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Solution

The fourth proportional to 12,742.43, 17,584.23 and 7,077.05 is: 9,766.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,742.43 : 17,584.23 = 7,077.05 : x
  2. Step 2: Convert to fraction form
    12,742.43/17,584.23 = 7,077.05/x
  3. Step 3: Cross multiply
    12,742.43x = 17,584.23 × 7,077.05
  4. Step 4: Simplify right side
    12,742.43x = 124,444,474.92
  5. Step 5: Solve for x
    x = 124,444,474.92/12,742.43
  6. Step 6: Final answer
    x = 9,766.15

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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.