Home / 13,461.43-20,195.40-4,227.43

Finding the Fourth Proportional to 13,461.43, 20,195.40 and 4,227.43

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Solution

The fourth proportional to 13,461.43, 20,195.40 and 4,227.43 is: 6,342.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,461.43 : 20,195.40 = 4,227.43 : x
  2. Step 2: Convert to fraction form
    13,461.43/20,195.40 = 4,227.43/x
  3. Step 3: Cross multiply
    13,461.43x = 20,195.40 × 4,227.43
  4. Step 4: Simplify right side
    13,461.43x = 85,374,639.82
  5. Step 5: Solve for x
    x = 85,374,639.82/13,461.43
  6. Step 6: Final answer
    x = 6,342.17

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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.