Home / 7,117.20-10,649.36-4,472.32

Finding the Fourth Proportional to 7,117.20, 10,649.36 and 4,472.32

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Solution

The fourth proportional to 7,117.20, 10,649.36 and 4,472.32 is: 6,691.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,117.20 : 10,649.36 = 4,472.32 : x
  2. Step 2: Convert to fraction form
    7,117.20/10,649.36 = 4,472.32/x
  3. Step 3: Cross multiply
    7,117.20x = 10,649.36 × 4,472.32
  4. Step 4: Simplify right side
    7,117.20x = 47,627,345.72
  5. Step 5: Solve for x
    x = 47,627,345.72/7,117.20
  6. Step 6: Final answer
    x = 6,691.87

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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.