Home / 15,527.80-21,387.54-11,935.88

Finding the Fourth Proportional to 15,527.80, 21,387.54 and 11,935.88

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Solution

The fourth proportional to 15,527.80, 21,387.54 and 11,935.88 is: 16,440.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,527.80 : 21,387.54 = 11,935.88 : x
  2. Step 2: Convert to fraction form
    15,527.80/21,387.54 = 11,935.88/x
  3. Step 3: Cross multiply
    15,527.80x = 21,387.54 × 11,935.88
  4. Step 4: Simplify right side
    15,527.80x = 255,279,110.94
  5. Step 5: Solve for x
    x = 255,279,110.94/15,527.80
  6. Step 6: Final answer
    x = 16,440.13

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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.