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Finding the Fourth Proportional to 10,884.73, 15,051.08 and 8,642.65

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Solution

The fourth proportional to 10,884.73, 15,051.08 and 8,642.65 is: 11,950.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,884.73 : 15,051.08 = 8,642.65 : x
  2. Step 2: Convert to fraction form
    10,884.73/15,051.08 = 8,642.65/x
  3. Step 3: Cross multiply
    10,884.73x = 15,051.08 × 8,642.65
  4. Step 4: Simplify right side
    10,884.73x = 130,081,216.56
  5. Step 5: Solve for x
    x = 130,081,216.56/10,884.73
  6. Step 6: Final answer
    x = 11,950.80

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1.5x scale

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.