Home / 9,990.35-14,983.84-3,663.92

Finding the Fourth Proportional to 9,990.35, 14,983.84 and 3,663.92

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Solution

The fourth proportional to 9,990.35, 14,983.84 and 3,663.92 is: 5,495.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,990.35 : 14,983.84 = 3,663.92 : x
  2. Step 2: Convert to fraction form
    9,990.35/14,983.84 = 3,663.92/x
  3. Step 3: Cross multiply
    9,990.35x = 14,983.84 × 3,663.92
  4. Step 4: Simplify right side
    9,990.35x = 54,899,591.05
  5. Step 5: Solve for x
    x = 54,899,591.05/9,990.35
  6. Step 6: Final answer
    x = 5,495.26

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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.