Home / 18,172.06-25,074.77-10,105.07

Finding the Fourth Proportional to 18,172.06, 25,074.77 and 10,105.07

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Solution

The fourth proportional to 18,172.06, 25,074.77 and 10,105.07 is: 13,943.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,172.06 : 25,074.77 = 10,105.07 : x
  2. Step 2: Convert to fraction form
    18,172.06/25,074.77 = 10,105.07/x
  3. Step 3: Cross multiply
    18,172.06x = 25,074.77 × 10,105.07
  4. Step 4: Simplify right side
    18,172.06x = 253,382,130.18
  5. Step 5: Solve for x
    x = 253,382,130.18/18,172.06
  6. Step 6: Final answer
    x = 13,943.50

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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.