Home / 10,858.91-16,280.39-3,459.11

Finding the Fourth Proportional to 10,858.91, 16,280.39 and 3,459.11

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Solution

The fourth proportional to 10,858.91, 16,280.39 and 3,459.11 is: 5,186.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,858.91 : 16,280.39 = 3,459.11 : x
  2. Step 2: Convert to fraction form
    10,858.91/16,280.39 = 3,459.11/x
  3. Step 3: Cross multiply
    10,858.91x = 16,280.39 × 3,459.11
  4. Step 4: Simplify right side
    10,858.91x = 56,315,587.10
  5. Step 5: Solve for x
    x = 56,315,587.10/10,858.91
  6. Step 6: Final answer
    x = 5,186.12

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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.