Home / 18,151.32-25,028.28-13,106.64

Finding the Fourth Proportional to 18,151.32, 25,028.28 and 13,106.64

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Solution

The fourth proportional to 18,151.32, 25,028.28 and 13,106.64 is: 18,072.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,151.32 : 25,028.28 = 13,106.64 : x
  2. Step 2: Convert to fraction form
    18,151.32/25,028.28 = 13,106.64/x
  3. Step 3: Cross multiply
    18,151.32x = 25,028.28 × 13,106.64
  4. Step 4: Simplify right side
    18,151.32x = 328,036,655.78
  5. Step 5: Solve for x
    x = 328,036,655.78/18,151.32
  6. Step 6: Final answer
    x = 18,072.33

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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.