Home / 10,331.31-15,488.35-4,788.62

Finding the Fourth Proportional to 10,331.31, 15,488.35 and 4,788.62

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Solution

The fourth proportional to 10,331.31, 15,488.35 and 4,788.62 is: 7,178.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,331.31 : 15,488.35 = 4,788.62 : x
  2. Step 2: Convert to fraction form
    10,331.31/15,488.35 = 4,788.62/x
  3. Step 3: Cross multiply
    10,331.31x = 15,488.35 × 4,788.62
  4. Step 4: Simplify right side
    10,331.31x = 74,167,791.25
  5. Step 5: Solve for x
    x = 74,167,791.25/10,331.31
  6. Step 6: Final answer
    x = 7,178.93

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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.