Home / 12,947.16-19,426.20-8,272.44

Finding the Fourth Proportional to 12,947.16, 19,426.20 and 8,272.44

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Solution

The fourth proportional to 12,947.16, 19,426.20 and 8,272.44 is: 12,412.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,947.16 : 19,426.20 = 8,272.44 : x
  2. Step 2: Convert to fraction form
    12,947.16/19,426.20 = 8,272.44/x
  3. Step 3: Cross multiply
    12,947.16x = 19,426.20 × 8,272.44
  4. Step 4: Simplify right side
    12,947.16x = 160,702,073.93
  5. Step 5: Solve for x
    x = 160,702,073.93/12,947.16
  6. Step 6: Final answer
    x = 12,412.15

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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.