Home / 18,240.16-25,137.02-13,195.80

Finding the Fourth Proportional to 18,240.16, 25,137.02 and 13,195.80

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Solution

The fourth proportional to 18,240.16, 25,137.02 and 13,195.80 is: 18,185.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,240.16 : 25,137.02 = 13,195.80 : x
  2. Step 2: Convert to fraction form
    18,240.16/25,137.02 = 13,195.80/x
  3. Step 3: Cross multiply
    18,240.16x = 25,137.02 × 13,195.80
  4. Step 4: Simplify right side
    18,240.16x = 331,703,088.52
  5. Step 5: Solve for x
    x = 331,703,088.52/18,240.16
  6. Step 6: Final answer
    x = 18,185.32

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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.