Home / 18,723.88-28,082.58-10,269.40

Finding the Fourth Proportional to 18,723.88, 28,082.58 and 10,269.40

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Solution

The fourth proportional to 18,723.88, 28,082.58 and 10,269.40 is: 15,402.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723.88 : 28,082.58 = 10,269.40 : x
  2. Step 2: Convert to fraction form
    18,723.88/28,082.58 = 10,269.40/x
  3. Step 3: Cross multiply
    18,723.88x = 28,082.58 × 10,269.40
  4. Step 4: Simplify right side
    18,723.88x = 288,391,247.05
  5. Step 5: Solve for x
    x = 288,391,247.05/18,723.88
  6. Step 6: Final answer
    x = 15,402.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.