Home / 7,320.76-10,102.65-3,963.57

Finding the Fourth Proportional to 7,320.76, 10,102.65 and 3,963.57

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Solution

The fourth proportional to 7,320.76, 10,102.65 and 3,963.57 is: 5,469.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,320.76 : 10,102.65 = 3,963.57 : x
  2. Step 2: Convert to fraction form
    7,320.76/10,102.65 = 3,963.57/x
  3. Step 3: Cross multiply
    7,320.76x = 10,102.65 × 3,963.57
  4. Step 4: Simplify right side
    7,320.76x = 40,042,507.71
  5. Step 5: Solve for x
    x = 40,042,507.71/7,320.76
  6. Step 6: Final answer
    x = 5,469.72

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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.