Home / 15,121.76-22,681.69-5,262.03

Finding the Fourth Proportional to 15,121.76, 22,681.69 and 5,262.03

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Solution

The fourth proportional to 15,121.76, 22,681.69 and 5,262.03 is: 7,892.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,121.76 : 22,681.69 = 5,262.03 : x
  2. Step 2: Convert to fraction form
    15,121.76/22,681.69 = 5,262.03/x
  3. Step 3: Cross multiply
    15,121.76x = 22,681.69 × 5,262.03
  4. Step 4: Simplify right side
    15,121.76x = 119,351,720.08
  5. Step 5: Solve for x
    x = 119,351,720.08/15,121.76
  6. Step 6: Final answer
    x = 7,892.72

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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.