Home / 18,633.86-25,715.22-10,136.48

Finding the Fourth Proportional to 18,633.86, 25,715.22 and 10,136.48

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Solution

The fourth proportional to 18,633.86, 25,715.22 and 10,136.48 is: 13,988.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,633.86 : 25,715.22 = 10,136.48 : x
  2. Step 2: Convert to fraction form
    18,633.86/25,715.22 = 10,136.48/x
  3. Step 3: Cross multiply
    18,633.86x = 25,715.22 × 10,136.48
  4. Step 4: Simplify right side
    18,633.86x = 260,661,813.23
  5. Step 5: Solve for x
    x = 260,661,813.23/18,633.86
  6. Step 6: Final answer
    x = 13,988.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.