Home / 19,070.72-26,320.17-11,115.44

Finding the Fourth Proportional to 19,070.72, 26,320.17 and 11,115.44

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Solution

The fourth proportional to 19,070.72, 26,320.17 and 11,115.44 is: 15,340.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,070.72 : 26,320.17 = 11,115.44 : x
  2. Step 2: Convert to fraction form
    19,070.72/26,320.17 = 11,115.44/x
  3. Step 3: Cross multiply
    19,070.72x = 26,320.17 × 11,115.44
  4. Step 4: Simplify right side
    19,070.72x = 292,560,270.42
  5. Step 5: Solve for x
    x = 292,560,270.42/19,070.72
  6. Step 6: Final answer
    x = 15,340.81

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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.