Home / 10,113.62-15,172.08-3,186.50

Finding the Fourth Proportional to 10,113.62, 15,172.08 and 3,186.50

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Solution

The fourth proportional to 10,113.62, 15,172.08 and 3,186.50 is: 4,780.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,113.62 : 15,172.08 = 3,186.50 : x
  2. Step 2: Convert to fraction form
    10,113.62/15,172.08 = 3,186.50/x
  3. Step 3: Cross multiply
    10,113.62x = 15,172.08 × 3,186.50
  4. Step 4: Simplify right side
    10,113.62x = 48,345,832.92
  5. Step 5: Solve for x
    x = 48,345,832.92/10,113.62
  6. Step 6: Final answer
    x = 4,780.27

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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.