Home / 12,136.61-18,197.49-5,564.81

Finding the Fourth Proportional to 12,136.61, 18,197.49 and 5,564.81

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Solution

The fourth proportional to 12,136.61, 18,197.49 and 5,564.81 is: 8,343.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,136.61 : 18,197.49 = 5,564.81 : x
  2. Step 2: Convert to fraction form
    12,136.61/18,197.49 = 5,564.81/x
  3. Step 3: Cross multiply
    12,136.61x = 18,197.49 × 5,564.81
  4. Step 4: Simplify right side
    12,136.61x = 101,265,574.33
  5. Step 5: Solve for x
    x = 101,265,574.33/12,136.61
  6. Step 6: Final answer
    x = 8,343.81

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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.