Home / 6,989.75-10,459.51-5,136.27

Finding the Fourth Proportional to 6,989.75, 10,459.51 and 5,136.27

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Solution

The fourth proportional to 6,989.75, 10,459.51 and 5,136.27 is: 7,685.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,989.75 : 10,459.51 = 5,136.27 : x
  2. Step 2: Convert to fraction form
    6,989.75/10,459.51 = 5,136.27/x
  3. Step 3: Cross multiply
    6,989.75x = 10,459.51 × 5,136.27
  4. Step 4: Simplify right side
    6,989.75x = 53,722,815.13
  5. Step 5: Solve for x
    x = 53,722,815.13/6,989.75
  6. Step 6: Final answer
    x = 7,685.94

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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.