Home / 14,061.20-19,381.80-11,538.80

Finding the Fourth Proportional to 14,061.20, 19,381.80 and 11,538.80

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Solution

The fourth proportional to 14,061.20, 19,381.80 and 11,538.80 is: 15,904.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,061.20 : 19,381.80 = 11,538.80 : x
  2. Step 2: Convert to fraction form
    14,061.20/19,381.80 = 11,538.80/x
  3. Step 3: Cross multiply
    14,061.20x = 19,381.80 × 11,538.80
  4. Step 4: Simplify right side
    14,061.20x = 223,642,713.84
  5. Step 5: Solve for x
    x = 223,642,713.84/14,061.20
  6. Step 6: Final answer
    x = 15,904.95

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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.