Home / 10,664.87-16,001.43-4,423.28

Finding the Fourth Proportional to 10,664.87, 16,001.43 and 4,423.28

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Solution

The fourth proportional to 10,664.87, 16,001.43 and 4,423.28 is: 6,636.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,664.87 : 16,001.43 = 4,423.28 : x
  2. Step 2: Convert to fraction form
    10,664.87/16,001.43 = 4,423.28/x
  3. Step 3: Cross multiply
    10,664.87x = 16,001.43 × 4,423.28
  4. Step 4: Simplify right side
    10,664.87x = 70,778,725.28
  5. Step 5: Solve for x
    x = 70,778,725.28/10,664.87
  6. Step 6: Final answer
    x = 6,636.63

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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.