Home / 18,104.10-25,017.96-13,620.07

Finding the Fourth Proportional to 18,104.10, 25,017.96 and 13,620.07

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Solution

The fourth proportional to 18,104.10, 25,017.96 and 13,620.07 is: 18,821.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,104.10 : 25,017.96 = 13,620.07 : x
  2. Step 2: Convert to fraction form
    18,104.10/25,017.96 = 13,620.07/x
  3. Step 3: Cross multiply
    18,104.10x = 25,017.96 × 13,620.07
  4. Step 4: Simplify right side
    18,104.10x = 340,746,366.46
  5. Step 5: Solve for x
    x = 340,746,366.46/18,104.10
  6. Step 6: Final answer
    x = 18,821.51

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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.