Home / 26,122.80-39,167.16-9,479.68

Finding the Fourth Proportional to 26,122.80, 39,167.16 and 9,479.68

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Solution

The fourth proportional to 26,122.80, 39,167.16 and 9,479.68 is: 14,213.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,122.80 : 39,167.16 = 9,479.68 : x
  2. Step 2: Convert to fraction form
    26,122.80/39,167.16 = 9,479.68/x
  3. Step 3: Cross multiply
    26,122.80x = 39,167.16 × 9,479.68
  4. Step 4: Simplify right side
    26,122.80x = 371,292,143.31
  5. Step 5: Solve for x
    x = 371,292,143.31/26,122.80
  6. Step 6: Final answer
    x = 14,213.34

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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.