Home / 18,197.16-25,111.78-10,239.38

Finding the Fourth Proportional to 18,197.16, 25,111.78 and 10,239.38

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Solution

The fourth proportional to 18,197.16, 25,111.78 and 10,239.38 is: 14,130.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,197.16 : 25,111.78 = 10,239.38 : x
  2. Step 2: Convert to fraction form
    18,197.16/25,111.78 = 10,239.38/x
  3. Step 3: Cross multiply
    18,197.16x = 25,111.78 × 10,239.38
  4. Step 4: Simplify right side
    18,197.16x = 257,129,057.90
  5. Step 5: Solve for x
    x = 257,129,057.90/18,197.16
  6. Step 6: Final answer
    x = 14,130.18

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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.