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Finding the Fourth Proportional to 15,988.05, 22,063.05 and 8,914.32

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Solution

The fourth proportional to 15,988.05, 22,063.05 and 8,914.32 is: 12,301.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,988.05 : 22,063.05 = 8,914.32 : x
  2. Step 2: Convert to fraction form
    15,988.05/22,063.05 = 8,914.32/x
  3. Step 3: Cross multiply
    15,988.05x = 22,063.05 × 8,914.32
  4. Step 4: Simplify right side
    15,988.05x = 196,677,087.88
  5. Step 5: Solve for x
    x = 196,677,087.88/15,988.05
  6. Step 6: Final answer
    x = 12,301.51

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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.