Home / 19,531.04-26,952.24-11,147.12

Finding the Fourth Proportional to 19,531.04, 26,952.24 and 11,147.12

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Solution

The fourth proportional to 19,531.04, 26,952.24 and 11,147.12 is: 15,382.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,531.04 : 26,952.24 = 11,147.12 : x
  2. Step 2: Convert to fraction form
    19,531.04/26,952.24 = 11,147.12/x
  3. Step 3: Cross multiply
    19,531.04x = 26,952.24 × 11,147.12
  4. Step 4: Simplify right side
    19,531.04x = 300,439,853.55
  5. Step 5: Solve for x
    x = 300,439,853.55/19,531.04
  6. Step 6: Final answer
    x = 15,382.69

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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.