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Finding the Fourth Proportional to 8,388.84, 11,528.01 and 8,003.40

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Solution

The fourth proportional to 8,388.84, 11,528.01 and 8,003.40 is: 10,998.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,388.84 : 11,528.01 = 8,003.40 : x
  2. Step 2: Convert to fraction form
    8,388.84/11,528.01 = 8,003.40/x
  3. Step 3: Cross multiply
    8,388.84x = 11,528.01 × 8,003.40
  4. Step 4: Simplify right side
    8,388.84x = 92,263,275.23
  5. Step 5: Solve for x
    x = 92,263,275.23/8,388.84
  6. Step 6: Final answer
    x = 10,998.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.