Home / 10,479.05-15,716.13-3,081.53

Finding the Fourth Proportional to 10,479.05, 15,716.13 and 3,081.53

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Solution

The fourth proportional to 10,479.05, 15,716.13 and 3,081.53 is: 4,621.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,479.05 : 15,716.13 = 3,081.53 : x
  2. Step 2: Convert to fraction form
    10,479.05/15,716.13 = 3,081.53/x
  3. Step 3: Cross multiply
    10,479.05x = 15,716.13 × 3,081.53
  4. Step 4: Simplify right side
    10,479.05x = 48,429,647.50
  5. Step 5: Solve for x
    x = 48,429,647.50/10,479.05
  6. Step 6: Final answer
    x = 4,621.57

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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.