Home / 19,288.78-26,627.13-11,331.52

Finding the Fourth Proportional to 19,288.78, 26,627.13 and 11,331.52

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Solution

The fourth proportional to 19,288.78, 26,627.13 and 11,331.52 is: 15,642.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,288.78 : 26,627.13 = 11,331.52 : x
  2. Step 2: Convert to fraction form
    19,288.78/26,627.13 = 11,331.52/x
  3. Step 3: Cross multiply
    19,288.78x = 26,627.13 × 11,331.52
  4. Step 4: Simplify right side
    19,288.78x = 301,725,856.14
  5. Step 5: Solve for x
    x = 301,725,856.14/19,288.78
  6. Step 6: Final answer
    x = 15,642.56

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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.