Home / 18,813.03-25,979.55-12,110.29

Finding the Fourth Proportional to 18,813.03, 25,979.55 and 12,110.29

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Solution

The fourth proportional to 18,813.03, 25,979.55 and 12,110.29 is: 16,723.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,813.03 : 25,979.55 = 12,110.29 : x
  2. Step 2: Convert to fraction form
    18,813.03/25,979.55 = 12,110.29/x
  3. Step 3: Cross multiply
    18,813.03x = 25,979.55 × 12,110.29
  4. Step 4: Simplify right side
    18,813.03x = 314,619,988.46
  5. Step 5: Solve for x
    x = 314,619,988.46/18,813.03
  6. Step 6: Final answer
    x = 16,723.51

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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.