Home / 11,568.84-17,351.08-5,639.78

Finding the Fourth Proportional to 11,568.84, 17,351.08 and 5,639.78

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Solution

The fourth proportional to 11,568.84, 17,351.08 and 5,639.78 is: 8,458.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,568.84 : 17,351.08 = 5,639.78 : x
  2. Step 2: Convert to fraction form
    11,568.84/17,351.08 = 5,639.78/x
  3. Step 3: Cross multiply
    11,568.84x = 17,351.08 × 5,639.78
  4. Step 4: Simplify right side
    11,568.84x = 97,856,159.01
  5. Step 5: Solve for x
    x = 97,856,159.01/11,568.84
  6. Step 6: Final answer
    x = 8,458.60

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1.5x scale

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.