Home / 7,136.10-10,716.30-5,289.30

Finding the Fourth Proportional to 7,136.10, 10,716.30 and 5,289.30

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Solution

The fourth proportional to 7,136.10, 10,716.30 and 5,289.30 is: 7,942.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136.10 : 10,716.30 = 5,289.30 : x
  2. Step 2: Convert to fraction form
    7,136.10/10,716.30 = 5,289.30/x
  3. Step 3: Cross multiply
    7,136.10x = 10,716.30 × 5,289.30
  4. Step 4: Simplify right side
    7,136.10x = 56,681,725.59
  5. Step 5: Solve for x
    x = 56,681,725.59/7,136.10
  6. Step 6: Final answer
    x = 7,942.96

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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.