Home / 7,176.12-10,778.76-5,251.56

Finding the Fourth Proportional to 7,176.12, 10,778.76 and 5,251.56

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Solution

The fourth proportional to 7,176.12, 10,778.76 and 5,251.56 is: 7,888.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,176.12 : 10,778.76 = 5,251.56 : x
  2. Step 2: Convert to fraction form
    7,176.12/10,778.76 = 5,251.56/x
  3. Step 3: Cross multiply
    7,176.12x = 10,778.76 × 5,251.56
  4. Step 4: Simplify right side
    7,176.12x = 56,605,304.87
  5. Step 5: Solve for x
    x = 56,605,304.87/7,176.12
  6. Step 6: Final answer
    x = 7,888.01

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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.