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Finding the Fourth Proportional to 10,000.84, 14,991.34 and 5,621.96

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Solution

The fourth proportional to 10,000.84, 14,991.34 and 5,621.96 is: 8,427.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,000.84 : 14,991.34 = 5,621.96 : x
  2. Step 2: Convert to fraction form
    10,000.84/14,991.34 = 5,621.96/x
  3. Step 3: Cross multiply
    10,000.84x = 14,991.34 × 5,621.96
  4. Step 4: Simplify right side
    10,000.84x = 84,280,713.83
  5. Step 5: Solve for x
    x = 84,280,713.83/10,000.84
  6. Step 6: Final answer
    x = 8,427.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.