Home / 10,078.12-15,052.67-8,000.50

Finding the Fourth Proportional to 10,078.12, 15,052.67 and 8,000.50

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Solution

The fourth proportional to 10,078.12, 15,052.67 and 8,000.50 is: 11,949.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,078.12 : 15,052.67 = 8,000.50 : x
  2. Step 2: Convert to fraction form
    10,078.12/15,052.67 = 8,000.50/x
  3. Step 3: Cross multiply
    10,078.12x = 15,052.67 × 8,000.50
  4. Step 4: Simplify right side
    10,078.12x = 120,428,886.34
  5. Step 5: Solve for x
    x = 120,428,886.34/10,078.12
  6. Step 6: Final answer
    x = 11,949.54

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.