Home / 10,230.12-15,345.12-2,631.39

Finding the Fourth Proportional to 10,230.12, 15,345.12 and 2,631.39

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Solution

The fourth proportional to 10,230.12, 15,345.12 and 2,631.39 is: 3,947.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,230.12 : 15,345.12 = 2,631.39 : x
  2. Step 2: Convert to fraction form
    10,230.12/15,345.12 = 2,631.39/x
  3. Step 3: Cross multiply
    10,230.12x = 15,345.12 × 2,631.39
  4. Step 4: Simplify right side
    10,230.12x = 40,379,077.11
  5. Step 5: Solve for x
    x = 40,379,077.11/10,230.12
  6. Step 6: Final answer
    x = 3,947.08

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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.