Home / 12,843.90-19,276.65-6,275.70

Finding the Fourth Proportional to 12,843.90, 19,276.65 and 6,275.70

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Solution

The fourth proportional to 12,843.90, 19,276.65 and 6,275.70 is: 9,418.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,843.90 : 19,276.65 = 6,275.70 : x
  2. Step 2: Convert to fraction form
    12,843.90/19,276.65 = 6,275.70/x
  3. Step 3: Cross multiply
    12,843.90x = 19,276.65 × 6,275.70
  4. Step 4: Simplify right side
    12,843.90x = 120,974,472.41
  5. Step 5: Solve for x
    x = 120,974,472.41/12,843.90
  6. Step 6: Final answer
    x = 9,418.83

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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.