Home / 13,838.88-20,731.56-11,591.02

Finding the Fourth Proportional to 13,838.88, 20,731.56 and 11,591.02

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Solution

The fourth proportional to 13,838.88, 20,731.56 and 11,591.02 is: 17,364.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,838.88 : 20,731.56 = 11,591.02 : x
  2. Step 2: Convert to fraction form
    13,838.88/20,731.56 = 11,591.02/x
  3. Step 3: Cross multiply
    13,838.88x = 20,731.56 × 11,591.02
  4. Step 4: Simplify right side
    13,838.88x = 240,299,926.59
  5. Step 5: Solve for x
    x = 240,299,926.59/13,838.88
  6. Step 6: Final answer
    x = 17,364.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.