Home / 10,331.69-15,488.90-4,789.01

Finding the Fourth Proportional to 10,331.69, 15,488.90 and 4,789.01

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Solution

The fourth proportional to 10,331.69, 15,488.90 and 4,789.01 is: 7,179.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,331.69 : 15,488.90 = 4,789.01 : x
  2. Step 2: Convert to fraction form
    10,331.69/15,488.90 = 4,789.01/x
  3. Step 3: Cross multiply
    10,331.69x = 15,488.90 × 4,789.01
  4. Step 4: Simplify right side
    10,331.69x = 74,176,431.52
  5. Step 5: Solve for x
    x = 74,176,431.52/10,331.69
  6. Step 6: Final answer
    x = 7,179.51

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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.