Home / 11,284.60-16,915.74-5,351.05

Finding the Fourth Proportional to 11,284.60, 16,915.74 and 5,351.05

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Solution

The fourth proportional to 11,284.60, 16,915.74 and 5,351.05 is: 8,021.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,284.60 : 16,915.74 = 5,351.05 : x
  2. Step 2: Convert to fraction form
    11,284.60/16,915.74 = 5,351.05/x
  3. Step 3: Cross multiply
    11,284.60x = 16,915.74 × 5,351.05
  4. Step 4: Simplify right side
    11,284.60x = 90,516,970.53
  5. Step 5: Solve for x
    x = 90,516,970.53/11,284.60
  6. Step 6: Final answer
    x = 8,021.28

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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.