Home / 10,889.14-16,313.15-6,433.51

Finding the Fourth Proportional to 10,889.14, 16,313.15 and 6,433.51

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Solution

The fourth proportional to 10,889.14, 16,313.15 and 6,433.51 is: 9,638.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,889.14 : 16,313.15 = 6,433.51 : x
  2. Step 2: Convert to fraction form
    10,889.14/16,313.15 = 6,433.51/x
  3. Step 3: Cross multiply
    10,889.14x = 16,313.15 × 6,433.51
  4. Step 4: Simplify right side
    10,889.14x = 104,950,788.96
  5. Step 5: Solve for x
    x = 104,950,788.96/10,889.14
  6. Step 6: Final answer
    x = 9,638.12

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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.