Home / 13,434.53-20,154.22-4,429.12

Finding the Fourth Proportional to 13,434.53, 20,154.22 and 4,429.12

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Solution

The fourth proportional to 13,434.53, 20,154.22 and 4,429.12 is: 6,644.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,434.53 : 20,154.22 = 4,429.12 : x
  2. Step 2: Convert to fraction form
    13,434.53/20,154.22 = 4,429.12/x
  3. Step 3: Cross multiply
    13,434.53x = 20,154.22 × 4,429.12
  4. Step 4: Simplify right side
    13,434.53x = 89,265,458.89
  5. Step 5: Solve for x
    x = 89,265,458.89/13,434.53
  6. Step 6: Final answer
    x = 6,644.48

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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.