Home / 10,511.08-15,766.08-2,719.69

Finding the Fourth Proportional to 10,511.08, 15,766.08 and 2,719.69

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Solution

The fourth proportional to 10,511.08, 15,766.08 and 2,719.69 is: 4,079.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,511.08 : 15,766.08 = 2,719.69 : x
  2. Step 2: Convert to fraction form
    10,511.08/15,766.08 = 2,719.69/x
  3. Step 3: Cross multiply
    10,511.08x = 15,766.08 × 2,719.69
  4. Step 4: Simplify right side
    10,511.08x = 42,878,850.12
  5. Step 5: Solve for x
    x = 42,878,850.12/10,511.08
  6. Step 6: Final answer
    x = 4,079.40

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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.