Home / 10,921.46-16,385.64-3,901.32

Finding the Fourth Proportional to 10,921.46, 16,385.64 and 3,901.32

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Solution

The fourth proportional to 10,921.46, 16,385.64 and 3,901.32 is: 5,853.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,921.46 : 16,385.64 = 3,901.32 : x
  2. Step 2: Convert to fraction form
    10,921.46/16,385.64 = 3,901.32/x
  3. Step 3: Cross multiply
    10,921.46x = 16,385.64 × 3,901.32
  4. Step 4: Simplify right side
    10,921.46x = 63,925,625.04
  5. Step 5: Solve for x
    x = 63,925,625.04/10,921.46
  6. Step 6: Final answer
    x = 5,853.21

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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.