Home / 17,643.68-26,396.40-12,722.72

Finding the Fourth Proportional to 17,643.68, 26,396.40 and 12,722.72

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Solution

The fourth proportional to 17,643.68, 26,396.40 and 12,722.72 is: 19,034.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,643.68 : 26,396.40 = 12,722.72 : x
  2. Step 2: Convert to fraction form
    17,643.68/26,396.40 = 12,722.72/x
  3. Step 3: Cross multiply
    17,643.68x = 26,396.40 × 12,722.72
  4. Step 4: Simplify right side
    17,643.68x = 335,834,006.21
  5. Step 5: Solve for x
    x = 335,834,006.21/17,643.68
  6. Step 6: Final answer
    x = 19,034.24

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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.