Home / 10,948.66-16,420.56-3,158.08

Finding the Fourth Proportional to 10,948.66, 16,420.56 and 3,158.08

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Solution

The fourth proportional to 10,948.66, 16,420.56 and 3,158.08 is: 4,736.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,948.66 : 16,420.56 = 3,158.08 : x
  2. Step 2: Convert to fraction form
    10,948.66/16,420.56 = 3,158.08/x
  3. Step 3: Cross multiply
    10,948.66x = 16,420.56 × 3,158.08
  4. Step 4: Simplify right side
    10,948.66x = 51,857,442.12
  5. Step 5: Solve for x
    x = 51,857,442.12/10,948.66
  6. Step 6: Final answer
    x = 4,736.42

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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.