Home / 18,744.87-25,832.34-13,430.46

Finding the Fourth Proportional to 18,744.87, 25,832.34 and 13,430.46

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Solution

The fourth proportional to 18,744.87, 25,832.34 and 13,430.46 is: 18,508.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,744.87 : 25,832.34 = 13,430.46 : x
  2. Step 2: Convert to fraction form
    18,744.87/25,832.34 = 13,430.46/x
  3. Step 3: Cross multiply
    18,744.87x = 25,832.34 × 13,430.46
  4. Step 4: Simplify right side
    18,744.87x = 346,940,209.08
  5. Step 5: Solve for x
    x = 346,940,209.08/18,744.87
  6. Step 6: Final answer
    x = 18,508.54

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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.