Home / 19,759.92-27,271.18-12,959.66

Finding the Fourth Proportional to 19,759.92, 27,271.18 and 12,959.66

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Solution

The fourth proportional to 19,759.92, 27,271.18 and 12,959.66 is: 17,885.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,759.92 : 27,271.18 = 12,959.66 : x
  2. Step 2: Convert to fraction form
    19,759.92/27,271.18 = 12,959.66/x
  3. Step 3: Cross multiply
    19,759.92x = 27,271.18 × 12,959.66
  4. Step 4: Simplify right side
    19,759.92x = 353,425,019.44
  5. Step 5: Solve for x
    x = 353,425,019.44/19,759.92
  6. Step 6: Final answer
    x = 17,885.95

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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.