Home / 13,822.05-20,718.27-7,151.82

Finding the Fourth Proportional to 13,822.05, 20,718.27 and 7,151.82

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Solution

The fourth proportional to 13,822.05, 20,718.27 and 7,151.82 is: 10,720.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,822.05 : 20,718.27 = 7,151.82 : x
  2. Step 2: Convert to fraction form
    13,822.05/20,718.27 = 7,151.82/x
  3. Step 3: Cross multiply
    13,822.05x = 20,718.27 × 7,151.82
  4. Step 4: Simplify right side
    13,822.05x = 148,173,337.75
  5. Step 5: Solve for x
    x = 148,173,337.75/13,822.05
  6. Step 6: Final answer
    x = 10,720.07

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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.