Home / 7,121.52-10,730.88-5,851.44

Finding the Fourth Proportional to 7,121.52, 10,730.88 and 5,851.44

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Solution

The fourth proportional to 7,121.52, 10,730.88 and 5,851.44 is: 8,817.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,121.52 : 10,730.88 = 5,851.44 : x
  2. Step 2: Convert to fraction form
    7,121.52/10,730.88 = 5,851.44/x
  3. Step 3: Cross multiply
    7,121.52x = 10,730.88 × 5,851.44
  4. Step 4: Simplify right side
    7,121.52x = 62,791,100.47
  5. Step 5: Solve for x
    x = 62,791,100.47/7,121.52
  6. Step 6: Final answer
    x = 8,817.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.