Home / 19,711.80-27,187.92-13,960.08

Finding the Fourth Proportional to 19,711.80, 27,187.92 and 13,960.08

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Solution

The fourth proportional to 19,711.80, 27,187.92 and 13,960.08 is: 19,254.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,711.80 : 27,187.92 = 13,960.08 : x
  2. Step 2: Convert to fraction form
    19,711.80/27,187.92 = 13,960.08/x
  3. Step 3: Cross multiply
    19,711.80x = 27,187.92 × 13,960.08
  4. Step 4: Simplify right side
    19,711.80x = 379,545,538.23
  5. Step 5: Solve for x
    x = 379,545,538.23/19,711.80
  6. Step 6: Final answer
    x = 19,254.74

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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.