Home / 7,122.52-10,659.17-4,921.85

Finding the Fourth Proportional to 7,122.52, 10,659.17 and 4,921.85

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Solution

The fourth proportional to 7,122.52, 10,659.17 and 4,921.85 is: 7,365.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,122.52 : 10,659.17 = 4,921.85 : x
  2. Step 2: Convert to fraction form
    7,122.52/10,659.17 = 4,921.85/x
  3. Step 3: Cross multiply
    7,122.52x = 10,659.17 × 4,921.85
  4. Step 4: Simplify right side
    7,122.52x = 52,462,835.86
  5. Step 5: Solve for x
    x = 52,462,835.86/7,122.52
  6. Step 6: Final answer
    x = 7,365.77

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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.