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Finding the Fourth Proportional to 13,019.52, 19,435.02 and 11,443.12

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Solution

The fourth proportional to 13,019.52, 19,435.02 and 11,443.12 is: 17,081.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,019.52 : 19,435.02 = 11,443.12 : x
  2. Step 2: Convert to fraction form
    13,019.52/19,435.02 = 11,443.12/x
  3. Step 3: Cross multiply
    13,019.52x = 19,435.02 × 11,443.12
  4. Step 4: Simplify right side
    13,019.52x = 222,397,266.06
  5. Step 5: Solve for x
    x = 222,397,266.06/13,019.52
  6. Step 6: Final answer
    x = 17,081.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.