Home / 10,990.55-16,490.44-4,747.35

Finding the Fourth Proportional to 10,990.55, 16,490.44 and 4,747.35

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Solution

The fourth proportional to 10,990.55, 16,490.44 and 4,747.35 is: 7,123.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,990.55 : 16,490.44 = 4,747.35 : x
  2. Step 2: Convert to fraction form
    10,990.55/16,490.44 = 4,747.35/x
  3. Step 3: Cross multiply
    10,990.55x = 16,490.44 × 4,747.35
  4. Step 4: Simplify right side
    10,990.55x = 78,285,815.46
  5. Step 5: Solve for x
    x = 78,285,815.46/10,990.55
  6. Step 6: Final answer
    x = 7,123.01

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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.