Home / 13,124.06-19,691.01-7,862.75

Finding the Fourth Proportional to 13,124.06, 19,691.01 and 7,862.75

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Solution

The fourth proportional to 13,124.06, 19,691.01 and 7,862.75 is: 11,797.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,124.06 : 19,691.01 = 7,862.75 : x
  2. Step 2: Convert to fraction form
    13,124.06/19,691.01 = 7,862.75/x
  3. Step 3: Cross multiply
    13,124.06x = 19,691.01 × 7,862.75
  4. Step 4: Simplify right side
    13,124.06x = 154,825,488.88
  5. Step 5: Solve for x
    x = 154,825,488.88/13,124.06
  6. Step 6: Final answer
    x = 11,797.07

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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.