Home / 10,509.12-15,764.01-3,934.05

Finding the Fourth Proportional to 10,509.12, 15,764.01 and 3,934.05

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Solution

The fourth proportional to 10,509.12, 15,764.01 and 3,934.05 is: 5,901.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,509.12 : 15,764.01 = 3,934.05 : x
  2. Step 2: Convert to fraction form
    10,509.12/15,764.01 = 3,934.05/x
  3. Step 3: Cross multiply
    10,509.12x = 15,764.01 × 3,934.05
  4. Step 4: Simplify right side
    10,509.12x = 62,016,403.54
  5. Step 5: Solve for x
    x = 62,016,403.54/10,509.12
  6. Step 6: Final answer
    x = 5,901.20

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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.