Home / 19,455.78-26,849.10-11,072.28

Finding the Fourth Proportional to 19,455.78, 26,849.10 and 11,072.28

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Solution

The fourth proportional to 19,455.78, 26,849.10 and 11,072.28 is: 15,279.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,455.78 : 26,849.10 = 11,072.28 : x
  2. Step 2: Convert to fraction form
    19,455.78/26,849.10 = 11,072.28/x
  3. Step 3: Cross multiply
    19,455.78x = 26,849.10 × 11,072.28
  4. Step 4: Simplify right side
    19,455.78x = 297,280,752.95
  5. Step 5: Solve for x
    x = 297,280,752.95/19,455.78
  6. Step 6: Final answer
    x = 15,279.82

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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.