Home / 12,427.68-17,150.52-6,762.78

Finding the Fourth Proportional to 12,427.68, 17,150.52 and 6,762.78

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Solution

The fourth proportional to 12,427.68, 17,150.52 and 6,762.78 is: 9,332.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,427.68 : 17,150.52 = 6,762.78 : x
  2. Step 2: Convert to fraction form
    12,427.68/17,150.52 = 6,762.78/x
  3. Step 3: Cross multiply
    12,427.68x = 17,150.52 × 6,762.78
  4. Step 4: Simplify right side
    12,427.68x = 115,985,193.65
  5. Step 5: Solve for x
    x = 115,985,193.65/12,427.68
  6. Step 6: Final answer
    x = 9,332.81

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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.