Home / 18,768.30-28,152.42-8,902.19

Finding the Fourth Proportional to 18,768.30, 28,152.42 and 8,902.19

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Solution

The fourth proportional to 18,768.30, 28,152.42 and 8,902.19 is: 13,353.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,768.30 : 28,152.42 = 8,902.19 : x
  2. Step 2: Convert to fraction form
    18,768.30/28,152.42 = 8,902.19/x
  3. Step 3: Cross multiply
    18,768.30x = 28,152.42 × 8,902.19
  4. Step 4: Simplify right side
    18,768.30x = 250,618,051.04
  5. Step 5: Solve for x
    x = 250,618,051.04/18,768.30
  6. Step 6: Final answer
    x = 13,353.26

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.