Home / 8,912.05-12,296.50-5,683.20

Finding the Fourth Proportional to 8,912.05, 12,296.50 and 5,683.20

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Solution

The fourth proportional to 8,912.05, 12,296.50 and 5,683.20 is: 7,841.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,912.05 : 12,296.50 = 5,683.20 : x
  2. Step 2: Convert to fraction form
    8,912.05/12,296.50 = 5,683.20/x
  3. Step 3: Cross multiply
    8,912.05x = 12,296.50 × 5,683.20
  4. Step 4: Simplify right side
    8,912.05x = 69,883,468.80
  5. Step 5: Solve for x
    x = 69,883,468.80/8,912.05
  6. Step 6: Final answer
    x = 7,841.46

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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.