Home / 10,330.31-15,495.62-2,539.13

Finding the Fourth Proportional to 10,330.31, 15,495.62 and 2,539.13

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Solution

The fourth proportional to 10,330.31, 15,495.62 and 2,539.13 is: 3,808.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,330.31 : 15,495.62 = 2,539.13 : x
  2. Step 2: Convert to fraction form
    10,330.31/15,495.62 = 2,539.13/x
  3. Step 3: Cross multiply
    10,330.31x = 15,495.62 × 2,539.13
  4. Step 4: Simplify right side
    10,330.31x = 39,345,303.44
  5. Step 5: Solve for x
    x = 39,345,303.44/10,330.31
  6. Step 6: Final answer
    x = 3,808.72

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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.