Home / 8,611.26-12,920.52-5,148.50

Finding the Fourth Proportional to 8,611.26, 12,920.52 and 5,148.50

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Solution

The fourth proportional to 8,611.26, 12,920.52 and 5,148.50 is: 7,724.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,611.26 : 12,920.52 = 5,148.50 : x
  2. Step 2: Convert to fraction form
    8,611.26/12,920.52 = 5,148.50/x
  3. Step 3: Cross multiply
    8,611.26x = 12,920.52 × 5,148.50
  4. Step 4: Simplify right side
    8,611.26x = 66,521,297.22
  5. Step 5: Solve for x
    x = 66,521,297.22/8,611.26
  6. Step 6: Final answer
    x = 7,724.92

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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.