Home / 8,739.88-12,059.14-5,202.40

Finding the Fourth Proportional to 8,739.88, 12,059.14 and 5,202.40

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Solution

The fourth proportional to 8,739.88, 12,059.14 and 5,202.40 is: 7,178.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,739.88 : 12,059.14 = 5,202.40 : x
  2. Step 2: Convert to fraction form
    8,739.88/12,059.14 = 5,202.40/x
  3. Step 3: Cross multiply
    8,739.88x = 12,059.14 × 5,202.40
  4. Step 4: Simplify right side
    8,739.88x = 62,736,469.94
  5. Step 5: Solve for x
    x = 62,736,469.94/8,739.88
  6. Step 6: Final answer
    x = 7,178.18

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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.