Home / 10,518-15,775.32-3,501.12

Finding the Fourth Proportional to 10,518, 15,775.32 and 3,501.12

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Solution

The fourth proportional to 10,518, 15,775.32 and 3,501.12 is: 5,251.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,518 : 15,775.32 = 3,501.12 : x
  2. Step 2: Convert to fraction form
    10,518/15,775.32 = 3,501.12/x
  3. Step 3: Cross multiply
    10,518x = 15,775.32 × 3,501.12
  4. Step 4: Simplify right side
    10,518x = 55,231,288.36
  5. Step 5: Solve for x
    x = 55,231,288.36/10,518
  6. Step 6: Final answer
    x = 5,251.12

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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.