Home / 19,018.20-26,240.88-11,061.12

Finding the Fourth Proportional to 19,018.20, 26,240.88 and 11,061.12

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Solution

The fourth proportional to 19,018.20, 26,240.88 and 11,061.12 is: 15,261.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,018.20 : 26,240.88 = 11,061.12 : x
  2. Step 2: Convert to fraction form
    19,018.20/26,240.88 = 11,061.12/x
  3. Step 3: Cross multiply
    19,018.20x = 26,240.88 × 11,061.12
  4. Step 4: Simplify right side
    19,018.20x = 290,253,522.59
  5. Step 5: Solve for x
    x = 290,253,522.59/19,018.20
  6. Step 6: Final answer
    x = 15,261.88

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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.