Home / 18,720.57-25,834.44-10,222.77

Finding the Fourth Proportional to 18,720.57, 25,834.44 and 10,222.77

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Solution

The fourth proportional to 18,720.57, 25,834.44 and 10,222.77 is: 14,107.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,720.57 : 25,834.44 = 10,222.77 : x
  2. Step 2: Convert to fraction form
    18,720.57/25,834.44 = 10,222.77/x
  3. Step 3: Cross multiply
    18,720.57x = 25,834.44 × 10,222.77
  4. Step 4: Simplify right side
    18,720.57x = 264,099,538.20
  5. Step 5: Solve for x
    x = 264,099,538.20/18,720.57
  6. Step 6: Final answer
    x = 14,107.45

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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.