Home / 18,522.56-25,561.14-10,139.24

Finding the Fourth Proportional to 18,522.56, 25,561.14 and 10,139.24

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Solution

The fourth proportional to 18,522.56, 25,561.14 and 10,139.24 is: 13,992.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,522.56 : 25,561.14 = 10,139.24 : x
  2. Step 2: Convert to fraction form
    18,522.56/25,561.14 = 10,139.24/x
  3. Step 3: Cross multiply
    18,522.56x = 25,561.14 × 10,139.24
  4. Step 4: Simplify right side
    18,522.56x = 259,170,533.13
  5. Step 5: Solve for x
    x = 259,170,533.13/18,522.56
  6. Step 6: Final answer
    x = 13,992.16

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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.