Home / 7,136.16-10,734.96-6,122.40

Finding the Fourth Proportional to 7,136.16, 10,734.96 and 6,122.40

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Solution

The fourth proportional to 7,136.16, 10,734.96 and 6,122.40 is: 9,209.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136.16 : 10,734.96 = 6,122.40 : x
  2. Step 2: Convert to fraction form
    7,136.16/10,734.96 = 6,122.40/x
  3. Step 3: Cross multiply
    7,136.16x = 10,734.96 × 6,122.40
  4. Step 4: Simplify right side
    7,136.16x = 65,723,719.10
  5. Step 5: Solve for x
    x = 65,723,719.10/7,136.16
  6. Step 6: Final answer
    x = 9,209.96

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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.