Home / 10,639.94-15,966.28-4,066.64

Finding the Fourth Proportional to 10,639.94, 15,966.28 and 4,066.64

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Solution

The fourth proportional to 10,639.94, 15,966.28 and 4,066.64 is: 6,102.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,639.94 : 15,966.28 = 4,066.64 : x
  2. Step 2: Convert to fraction form
    10,639.94/15,966.28 = 4,066.64/x
  3. Step 3: Cross multiply
    10,639.94x = 15,966.28 × 4,066.64
  4. Step 4: Simplify right side
    10,639.94x = 64,929,112.90
  5. Step 5: Solve for x
    x = 64,929,112.90/10,639.94
  6. Step 6: Final answer
    x = 6,102.39

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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.