Home / 10,388.62-15,582.43-4,840.03

Finding the Fourth Proportional to 10,388.62, 15,582.43 and 4,840.03

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Solution

The fourth proportional to 10,388.62, 15,582.43 and 4,840.03 is: 7,259.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,388.62 : 15,582.43 = 4,840.03 : x
  2. Step 2: Convert to fraction form
    10,388.62/15,582.43 = 4,840.03/x
  3. Step 3: Cross multiply
    10,388.62x = 15,582.43 × 4,840.03
  4. Step 4: Simplify right side
    10,388.62x = 75,419,428.67
  5. Step 5: Solve for x
    x = 75,419,428.67/10,388.62
  6. Step 6: Final answer
    x = 7,259.81

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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.