Home / 9,239.85-12,749.49-5,704.20

Finding the Fourth Proportional to 9,239.85, 12,749.49 and 5,704.20

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Solution

The fourth proportional to 9,239.85, 12,749.49 and 5,704.20 is: 7,870.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,239.85 : 12,749.49 = 5,704.20 : x
  2. Step 2: Convert to fraction form
    9,239.85/12,749.49 = 5,704.20/x
  3. Step 3: Cross multiply
    9,239.85x = 12,749.49 × 5,704.20
  4. Step 4: Simplify right side
    9,239.85x = 72,725,640.86
  5. Step 5: Solve for x
    x = 72,725,640.86/9,239.85
  6. Step 6: Final answer
    x = 7,870.87

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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.