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Finding the Fourth Proportional to 9,993.02, 14,988.12 and 5,491.48

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Solution

The fourth proportional to 9,993.02, 14,988.12 and 5,491.48 is: 8,236.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,993.02 : 14,988.12 = 5,491.48 : x
  2. Step 2: Convert to fraction form
    9,993.02/14,988.12 = 5,491.48/x
  3. Step 3: Cross multiply
    9,993.02x = 14,988.12 × 5,491.48
  4. Step 4: Simplify right side
    9,993.02x = 82,306,961.22
  5. Step 5: Solve for x
    x = 82,306,961.22/9,993.02
  6. Step 6: Final answer
    x = 8,236.45

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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.