Home / 19,209.39-26,506.11-11,142.69

Finding the Fourth Proportional to 19,209.39, 26,506.11 and 11,142.69

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Solution

The fourth proportional to 19,209.39, 26,506.11 and 11,142.69 is: 15,375.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,209.39 : 26,506.11 = 11,142.69 : x
  2. Step 2: Convert to fraction form
    19,209.39/26,506.11 = 11,142.69/x
  3. Step 3: Cross multiply
    19,209.39x = 26,506.11 × 11,142.69
  4. Step 4: Simplify right side
    19,209.39x = 295,349,366.84
  5. Step 5: Solve for x
    x = 295,349,366.84/19,209.39
  6. Step 6: Final answer
    x = 15,375.26

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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.