Home / 9,990.77-13,787.24-5,514.49

Finding the Fourth Proportional to 9,990.77, 13,787.24 and 5,514.49

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Solution

The fourth proportional to 9,990.77, 13,787.24 and 5,514.49 is: 7,609.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,990.77 : 13,787.24 = 5,514.49 : x
  2. Step 2: Convert to fraction form
    9,990.77/13,787.24 = 5,514.49/x
  3. Step 3: Cross multiply
    9,990.77x = 13,787.24 × 5,514.49
  4. Step 4: Simplify right side
    9,990.77x = 76,029,604.00
  5. Step 5: Solve for x
    x = 76,029,604.00/9,990.77
  6. Step 6: Final answer
    x = 7,609.98

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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.