Home / 10,647.04-15,918-9,021.76

Finding the Fourth Proportional to 10,647.04, 15,918 and 9,021.76

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Solution

The fourth proportional to 10,647.04, 15,918 and 9,021.76 is: 13,488.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,647.04 : 15,918 = 9,021.76 : x
  2. Step 2: Convert to fraction form
    10,647.04/15,918 = 9,021.76/x
  3. Step 3: Cross multiply
    10,647.04x = 15,918 × 9,021.76
  4. Step 4: Simplify right side
    10,647.04x = 143,608,375.68
  5. Step 5: Solve for x
    x = 143,608,375.68/10,647.04
  6. Step 6: Final answer
    x = 13,488.10

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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.