Home / 10,330.72-15,495.90-2,539.60

Finding the Fourth Proportional to 10,330.72, 15,495.90 and 2,539.60

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Solution

The fourth proportional to 10,330.72, 15,495.90 and 2,539.60 is: 3,809.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,330.72 : 15,495.90 = 2,539.60 : x
  2. Step 2: Convert to fraction form
    10,330.72/15,495.90 = 2,539.60/x
  3. Step 3: Cross multiply
    10,330.72x = 15,495.90 × 2,539.60
  4. Step 4: Simplify right side
    10,330.72x = 39,353,387.64
  5. Step 5: Solve for x
    x = 39,353,387.64/10,330.72
  6. Step 6: Final answer
    x = 3,809.36

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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.