Home / 10,084.64-15,126.88-3,928.64

Finding the Fourth Proportional to 10,084.64, 15,126.88 and 3,928.64

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Solution

The fourth proportional to 10,084.64, 15,126.88 and 3,928.64 is: 5,892.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,084.64 : 15,126.88 = 3,928.64 : x
  2. Step 2: Convert to fraction form
    10,084.64/15,126.88 = 3,928.64/x
  3. Step 3: Cross multiply
    10,084.64x = 15,126.88 × 3,928.64
  4. Step 4: Simplify right side
    10,084.64x = 59,428,065.84
  5. Step 5: Solve for x
    x = 59,428,065.84/10,084.64
  6. Step 6: Final answer
    x = 5,892.93

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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.