Home / 18,268.06-25,210.29-10,720.18

Finding the Fourth Proportional to 18,268.06, 25,210.29 and 10,720.18

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Solution

The fourth proportional to 18,268.06, 25,210.29 and 10,720.18 is: 14,794.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,268.06 : 25,210.29 = 10,720.18 : x
  2. Step 2: Convert to fraction form
    18,268.06/25,210.29 = 10,720.18/x
  3. Step 3: Cross multiply
    18,268.06x = 25,210.29 × 10,720.18
  4. Step 4: Simplify right side
    18,268.06x = 270,258,846.65
  5. Step 5: Solve for x
    x = 270,258,846.65/18,268.06
  6. Step 6: Final answer
    x = 14,794.06

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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.