Home / 18,426.42-25,421.24-11,340.54

Finding the Fourth Proportional to 18,426.42, 25,421.24 and 11,340.54

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Solution

The fourth proportional to 18,426.42, 25,421.24 and 11,340.54 is: 15,645.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,426.42 : 25,421.24 = 11,340.54 : x
  2. Step 2: Convert to fraction form
    18,426.42/25,421.24 = 11,340.54/x
  3. Step 3: Cross multiply
    18,426.42x = 25,421.24 × 11,340.54
  4. Step 4: Simplify right side
    18,426.42x = 288,290,617.42
  5. Step 5: Solve for x
    x = 288,290,617.42/18,426.42
  6. Step 6: Final answer
    x = 15,645.50

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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.