Home / 10,112.64-15,168.96-3,187.08

Finding the Fourth Proportional to 10,112.64, 15,168.96 and 3,187.08

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Solution

The fourth proportional to 10,112.64, 15,168.96 and 3,187.08 is: 4,780.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,112.64 : 15,168.96 = 3,187.08 : x
  2. Step 2: Convert to fraction form
    10,112.64/15,168.96 = 3,187.08/x
  3. Step 3: Cross multiply
    10,112.64x = 15,168.96 × 3,187.08
  4. Step 4: Simplify right side
    10,112.64x = 48,344,689.04
  5. Step 5: Solve for x
    x = 48,344,689.04/10,112.64
  6. Step 6: Final answer
    x = 4,780.62

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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.