Home / 12,130.43-16,739.88-6,752.78

Finding the Fourth Proportional to 12,130.43, 16,739.88 and 6,752.78

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Solution

The fourth proportional to 12,130.43, 16,739.88 and 6,752.78 is: 9,318.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,130.43 : 16,739.88 = 6,752.78 : x
  2. Step 2: Convert to fraction form
    12,130.43/16,739.88 = 6,752.78/x
  3. Step 3: Cross multiply
    12,130.43x = 16,739.88 × 6,752.78
  4. Step 4: Simplify right side
    12,130.43x = 113,040,726.87
  5. Step 5: Solve for x
    x = 113,040,726.87/12,130.43
  6. Step 6: Final answer
    x = 9,318.77

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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.