Home / 13,424.68-20,136.48-6,850.72

Finding the Fourth Proportional to 13,424.68, 20,136.48 and 6,850.72

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Solution

The fourth proportional to 13,424.68, 20,136.48 and 6,850.72 is: 10,275.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,424.68 : 20,136.48 = 6,850.72 : x
  2. Step 2: Convert to fraction form
    13,424.68/20,136.48 = 6,850.72/x
  3. Step 3: Cross multiply
    13,424.68x = 20,136.48 × 6,850.72
  4. Step 4: Simplify right side
    13,424.68x = 137,949,386.27
  5. Step 5: Solve for x
    x = 137,949,386.27/13,424.68
  6. Step 6: Final answer
    x = 10,275.80

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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.