Home / 18,172.51-25,074.39-10,617.38

Finding the Fourth Proportional to 18,172.51, 25,074.39 and 10,617.38

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Solution

The fourth proportional to 18,172.51, 25,074.39 and 10,617.38 is: 14,649.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,172.51 : 25,074.39 = 10,617.38 : x
  2. Step 2: Convert to fraction form
    18,172.51/25,074.39 = 10,617.38/x
  3. Step 3: Cross multiply
    18,172.51x = 25,074.39 × 10,617.38
  4. Step 4: Simplify right side
    18,172.51x = 266,224,326.90
  5. Step 5: Solve for x
    x = 266,224,326.90/18,172.51
  6. Step 6: Final answer
    x = 14,649.84

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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.