Home / 10,890.32-15,026.32-6,412.43

Finding the Fourth Proportional to 10,890.32, 15,026.32 and 6,412.43

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Solution

The fourth proportional to 10,890.32, 15,026.32 and 6,412.43 is: 8,847.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,890.32 : 15,026.32 = 6,412.43 : x
  2. Step 2: Convert to fraction form
    10,890.32/15,026.32 = 6,412.43/x
  3. Step 3: Cross multiply
    10,890.32x = 15,026.32 × 6,412.43
  4. Step 4: Simplify right side
    10,890.32x = 96,355,193.10
  5. Step 5: Solve for x
    x = 96,355,193.10/10,890.32
  6. Step 6: Final answer
    x = 8,847.79

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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.