Home / 18,289.90-25,241.92-13,189.61

Finding the Fourth Proportional to 18,289.90, 25,241.92 and 13,189.61

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Solution

The fourth proportional to 18,289.90, 25,241.92 and 13,189.61 is: 18,203.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,289.90 : 25,241.92 = 13,189.61 : x
  2. Step 2: Convert to fraction form
    18,289.90/25,241.92 = 13,189.61/x
  3. Step 3: Cross multiply
    18,289.90x = 25,241.92 × 13,189.61
  4. Step 4: Simplify right side
    18,289.90x = 332,931,080.45
  5. Step 5: Solve for x
    x = 332,931,080.45/18,289.90
  6. Step 6: Final answer
    x = 18,203.00

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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.