Home / 18,728.10-25,844.54-10,231.01

Finding the Fourth Proportional to 18,728.10, 25,844.54 and 10,231.01

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Solution

The fourth proportional to 18,728.10, 25,844.54 and 10,231.01 is: 14,118.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,728.10 : 25,844.54 = 10,231.01 : x
  2. Step 2: Convert to fraction form
    18,728.10/25,844.54 = 10,231.01/x
  3. Step 3: Cross multiply
    18,728.10x = 25,844.54 × 10,231.01
  4. Step 4: Simplify right side
    18,728.10x = 264,415,566.81
  5. Step 5: Solve for x
    x = 264,415,566.81/18,728.10
  6. Step 6: Final answer
    x = 14,118.65

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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.