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Finding the Fourth Proportional to 7,988.88, 11,026 and 5,899.04

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Solution

The fourth proportional to 7,988.88, 11,026 and 5,899.04 is: 8,141.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,988.88 : 11,026 = 5,899.04 : x
  2. Step 2: Convert to fraction form
    7,988.88/11,026 = 5,899.04/x
  3. Step 3: Cross multiply
    7,988.88x = 11,026 × 5,899.04
  4. Step 4: Simplify right side
    7,988.88x = 65,042,815.04
  5. Step 5: Solve for x
    x = 65,042,815.04/7,988.88
  6. Step 6: Final answer
    x = 8,141.67

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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.