Home / 8,749.12-13,109.07-6,147.40

Finding the Fourth Proportional to 8,749.12, 13,109.07 and 6,147.40

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Solution

The fourth proportional to 8,749.12, 13,109.07 and 6,147.40 is: 9,210.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,749.12 : 13,109.07 = 6,147.40 : x
  2. Step 2: Convert to fraction form
    8,749.12/13,109.07 = 6,147.40/x
  3. Step 3: Cross multiply
    8,749.12x = 13,109.07 × 6,147.40
  4. Step 4: Simplify right side
    8,749.12x = 80,586,696.92
  5. Step 5: Solve for x
    x = 80,586,696.92/8,749.12
  6. Step 6: Final answer
    x = 9,210.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.