Home / 10,905.12-16,345.08-5,049.48

Finding the Fourth Proportional to 10,905.12, 16,345.08 and 5,049.48

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Solution

The fourth proportional to 10,905.12, 16,345.08 and 5,049.48 is: 7,568.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,905.12 : 16,345.08 = 5,049.48 : x
  2. Step 2: Convert to fraction form
    10,905.12/16,345.08 = 5,049.48/x
  3. Step 3: Cross multiply
    10,905.12x = 16,345.08 × 5,049.48
  4. Step 4: Simplify right side
    10,905.12x = 82,534,154.56
  5. Step 5: Solve for x
    x = 82,534,154.56/10,905.12
  6. Step 6: Final answer
    x = 7,568.39

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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.