Home / 7,122.20-10,683.30-5,653.40

Finding the Fourth Proportional to 7,122.20, 10,683.30 and 5,653.40

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Solution

The fourth proportional to 7,122.20, 10,683.30 and 5,653.40 is: 8,480.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,122.20 : 10,683.30 = 5,653.40 : x
  2. Step 2: Convert to fraction form
    7,122.20/10,683.30 = 5,653.40/x
  3. Step 3: Cross multiply
    7,122.20x = 10,683.30 × 5,653.40
  4. Step 4: Simplify right side
    7,122.20x = 60,396,968.22
  5. Step 5: Solve for x
    x = 60,396,968.22/7,122.20
  6. Step 6: Final answer
    x = 8,480.10

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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.