Home / 7,220.32-10,778.24-6,345.52

Finding the Fourth Proportional to 7,220.32, 10,778.24 and 6,345.52

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Solution

The fourth proportional to 7,220.32, 10,778.24 and 6,345.52 is: 9,472.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.32 : 10,778.24 = 6,345.52 : x
  2. Step 2: Convert to fraction form
    7,220.32/10,778.24 = 6,345.52/x
  3. Step 3: Cross multiply
    7,220.32x = 10,778.24 × 6,345.52
  4. Step 4: Simplify right side
    7,220.32x = 68,393,537.48
  5. Step 5: Solve for x
    x = 68,393,537.48/7,220.32
  6. Step 6: Final answer
    x = 9,472.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.