Home / 10,717.60-16,087.20-5,175.40

Finding the Fourth Proportional to 10,717.60, 16,087.20 and 5,175.40

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Solution

The fourth proportional to 10,717.60, 16,087.20 and 5,175.40 is: 7,768.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,717.60 : 16,087.20 = 5,175.40 : x
  2. Step 2: Convert to fraction form
    10,717.60/16,087.20 = 5,175.40/x
  3. Step 3: Cross multiply
    10,717.60x = 16,087.20 × 5,175.40
  4. Step 4: Simplify right side
    10,717.60x = 83,257,694.88
  5. Step 5: Solve for x
    x = 83,257,694.88/10,717.60
  6. Step 6: Final answer
    x = 7,768.32

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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.