Home / 7,320.63-10,102.50-3,963.49

Finding the Fourth Proportional to 7,320.63, 10,102.50 and 3,963.49

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Solution

The fourth proportional to 7,320.63, 10,102.50 and 3,963.49 is: 5,469.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,320.63 : 10,102.50 = 3,963.49 : x
  2. Step 2: Convert to fraction form
    7,320.63/10,102.50 = 3,963.49/x
  3. Step 3: Cross multiply
    7,320.63x = 10,102.50 × 3,963.49
  4. Step 4: Simplify right side
    7,320.63x = 40,041,157.73
  5. Step 5: Solve for x
    x = 40,041,157.73/7,320.63
  6. Step 6: Final answer
    x = 5,469.63

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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.