Home / 13,891.52-19,170.30-7,603.88

Finding the Fourth Proportional to 13,891.52, 19,170.30 and 7,603.88

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Solution

The fourth proportional to 13,891.52, 19,170.30 and 7,603.88 is: 10,493.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,891.52 : 19,170.30 = 7,603.88 : x
  2. Step 2: Convert to fraction form
    13,891.52/19,170.30 = 7,603.88/x
  3. Step 3: Cross multiply
    13,891.52x = 19,170.30 × 7,603.88
  4. Step 4: Simplify right side
    13,891.52x = 145,768,660.76
  5. Step 5: Solve for x
    x = 145,768,660.76/13,891.52
  6. Step 6: Final answer
    x = 10,493.36

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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.