Home / 11,406.84-15,740.94-6,371.64

Finding the Fourth Proportional to 11,406.84, 15,740.94 and 6,371.64

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Solution

The fourth proportional to 11,406.84, 15,740.94 and 6,371.64 is: 8,792.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,406.84 : 15,740.94 = 6,371.64 : x
  2. Step 2: Convert to fraction form
    11,406.84/15,740.94 = 6,371.64/x
  3. Step 3: Cross multiply
    11,406.84x = 15,740.94 × 6,371.64
  4. Step 4: Simplify right side
    11,406.84x = 100,295,602.94
  5. Step 5: Solve for x
    x = 100,295,602.94/11,406.84
  6. Step 6: Final answer
    x = 8,792.58

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1.5x scale

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.