Home / 6,864.60-10,296.90-5,136.60

Finding the Fourth Proportional to 6,864.60, 10,296.90 and 5,136.60

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Solution

The fourth proportional to 6,864.60, 10,296.90 and 5,136.60 is: 7,704.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,864.60 : 10,296.90 = 5,136.60 : x
  2. Step 2: Convert to fraction form
    6,864.60/10,296.90 = 5,136.60/x
  3. Step 3: Cross multiply
    6,864.60x = 10,296.90 × 5,136.60
  4. Step 4: Simplify right side
    6,864.60x = 52,891,056.54
  5. Step 5: Solve for x
    x = 52,891,056.54/6,864.60
  6. Step 6: Final answer
    x = 7,704.90

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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.