Home / 18,741.40-25,864.50-11,188.04

Finding the Fourth Proportional to 18,741.40, 25,864.50 and 11,188.04

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Solution

The fourth proportional to 18,741.40, 25,864.50 and 11,188.04 is: 15,440.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,741.40 : 25,864.50 = 11,188.04 : x
  2. Step 2: Convert to fraction form
    18,741.40/25,864.50 = 11,188.04/x
  3. Step 3: Cross multiply
    18,741.40x = 25,864.50 × 11,188.04
  4. Step 4: Simplify right side
    18,741.40x = 289,373,060.58
  5. Step 5: Solve for x
    x = 289,373,060.58/18,741.40
  6. Step 6: Final answer
    x = 15,440.31

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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.