Home / 11,532.78-15,915.28-6,993.94

Finding the Fourth Proportional to 11,532.78, 15,915.28 and 6,993.94

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Solution

The fourth proportional to 11,532.78, 15,915.28 and 6,993.94 is: 9,651.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,532.78 : 15,915.28 = 6,993.94 : x
  2. Step 2: Convert to fraction form
    11,532.78/15,915.28 = 6,993.94/x
  3. Step 3: Cross multiply
    11,532.78x = 15,915.28 × 6,993.94
  4. Step 4: Simplify right side
    11,532.78x = 111,310,513.40
  5. Step 5: Solve for x
    x = 111,310,513.40/11,532.78
  6. Step 6: Final answer
    x = 9,651.66

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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.