Home / 10,981.76-15,151.08-6,262.64

Finding the Fourth Proportional to 10,981.76, 15,151.08 and 6,262.64

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Solution

The fourth proportional to 10,981.76, 15,151.08 and 6,262.64 is: 8,640.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,981.76 : 15,151.08 = 6,262.64 : x
  2. Step 2: Convert to fraction form
    10,981.76/15,151.08 = 6,262.64/x
  3. Step 3: Cross multiply
    10,981.76x = 15,151.08 × 6,262.64
  4. Step 4: Simplify right side
    10,981.76x = 94,885,759.65
  5. Step 5: Solve for x
    x = 94,885,759.65/10,981.76
  6. Step 6: Final answer
    x = 8,640.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.