Home / 10,356.40-15,520.74-3,776.38

Finding the Fourth Proportional to 10,356.40, 15,520.74 and 3,776.38

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Solution

The fourth proportional to 10,356.40, 15,520.74 and 3,776.38 is: 5,659.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,356.40 : 15,520.74 = 3,776.38 : x
  2. Step 2: Convert to fraction form
    10,356.40/15,520.74 = 3,776.38/x
  3. Step 3: Cross multiply
    10,356.40x = 15,520.74 × 3,776.38
  4. Step 4: Simplify right side
    10,356.40x = 58,612,212.12
  5. Step 5: Solve for x
    x = 58,612,212.12/10,356.40
  6. Step 6: Final answer
    x = 5,659.52

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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.