Home / 10,376.20-14,319.12-5,660.44

Finding the Fourth Proportional to 10,376.20, 14,319.12 and 5,660.44

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Solution

The fourth proportional to 10,376.20, 14,319.12 and 5,660.44 is: 7,811.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,376.20 : 14,319.12 = 5,660.44 : x
  2. Step 2: Convert to fraction form
    10,376.20/14,319.12 = 5,660.44/x
  3. Step 3: Cross multiply
    10,376.20x = 14,319.12 × 5,660.44
  4. Step 4: Simplify right side
    10,376.20x = 81,052,519.61
  5. Step 5: Solve for x
    x = 81,052,519.61/10,376.20
  6. Step 6: Final answer
    x = 7,811.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.