Home / 17,126.11-23,619.09-13,155.49

Finding the Fourth Proportional to 17,126.11, 23,619.09 and 13,155.49

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Solution

The fourth proportional to 17,126.11, 23,619.09 and 13,155.49 is: 18,143.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,126.11 : 23,619.09 = 13,155.49 : x
  2. Step 2: Convert to fraction form
    17,126.11/23,619.09 = 13,155.49/x
  3. Step 3: Cross multiply
    17,126.11x = 23,619.09 × 13,155.49
  4. Step 4: Simplify right side
    17,126.11x = 310,720,702.30
  5. Step 5: Solve for x
    x = 310,720,702.30/17,126.11
  6. Step 6: Final answer
    x = 18,143.10

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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.