Home / 12,811.47-19,132.23-11,060.79

Finding the Fourth Proportional to 12,811.47, 19,132.23 and 11,060.79

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Solution

The fourth proportional to 12,811.47, 19,132.23 and 11,060.79 is: 16,517.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,811.47 : 19,132.23 = 11,060.79 : x
  2. Step 2: Convert to fraction form
    12,811.47/19,132.23 = 11,060.79/x
  3. Step 3: Cross multiply
    12,811.47x = 19,132.23 × 11,060.79
  4. Step 4: Simplify right side
    12,811.47x = 211,617,578.26
  5. Step 5: Solve for x
    x = 211,617,578.26/12,811.47
  6. Step 6: Final answer
    x = 16,517.82

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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.