Home / 10,949.18-16,424.08-4,285.40

Finding the Fourth Proportional to 10,949.18, 16,424.08 and 4,285.40

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Solution

The fourth proportional to 10,949.18, 16,424.08 and 4,285.40 is: 6,428.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,949.18 : 16,424.08 = 4,285.40 : x
  2. Step 2: Convert to fraction form
    10,949.18/16,424.08 = 4,285.40/x
  3. Step 3: Cross multiply
    10,949.18x = 16,424.08 × 4,285.40
  4. Step 4: Simplify right side
    10,949.18x = 70,383,752.43
  5. Step 5: Solve for x
    x = 70,383,752.43/10,949.18
  6. Step 6: Final answer
    x = 6,428.22

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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.