Home / 18,523.17-25,561.89-10,139.67

Finding the Fourth Proportional to 18,523.17, 25,561.89 and 10,139.67

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Solution

The fourth proportional to 18,523.17, 25,561.89 and 10,139.67 is: 13,992.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,523.17 : 25,561.89 = 10,139.67 : x
  2. Step 2: Convert to fraction form
    18,523.17/25,561.89 = 10,139.67/x
  3. Step 3: Cross multiply
    18,523.17x = 25,561.89 × 10,139.67
  4. Step 4: Simplify right side
    18,523.17x = 259,189,129.18
  5. Step 5: Solve for x
    x = 259,189,129.18/18,523.17
  6. Step 6: Final answer
    x = 13,992.70

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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.