Home / 19,738.38-27,235.53-11,780.13

Finding the Fourth Proportional to 19,738.38, 27,235.53 and 11,780.13

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Solution

The fourth proportional to 19,738.38, 27,235.53 and 11,780.13 is: 16,254.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,738.38 : 27,235.53 = 11,780.13 : x
  2. Step 2: Convert to fraction form
    19,738.38/27,235.53 = 11,780.13/x
  3. Step 3: Cross multiply
    19,738.38x = 27,235.53 × 11,780.13
  4. Step 4: Simplify right side
    19,738.38x = 320,838,084.02
  5. Step 5: Solve for x
    x = 320,838,084.02/19,738.38
  6. Step 6: Final answer
    x = 16,254.53

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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.