Home / 19,919.59-27,488.82-10,966.90

Finding the Fourth Proportional to 19,919.59, 27,488.82 and 10,966.90

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Solution

The fourth proportional to 19,919.59, 27,488.82 and 10,966.90 is: 15,134.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,919.59 : 27,488.82 = 10,966.90 : x
  2. Step 2: Convert to fraction form
    19,919.59/27,488.82 = 10,966.90/x
  3. Step 3: Cross multiply
    19,919.59x = 27,488.82 × 10,966.90
  4. Step 4: Simplify right side
    19,919.59x = 301,467,140.06
  5. Step 5: Solve for x
    x = 301,467,140.06/19,919.59
  6. Step 6: Final answer
    x = 15,134.20

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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.