Home / 13,461.48-20,195.56-6,446.82

Finding the Fourth Proportional to 13,461.48, 20,195.56 and 6,446.82

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Solution

The fourth proportional to 13,461.48, 20,195.56 and 6,446.82 is: 9,671.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,461.48 : 20,195.56 = 6,446.82 : x
  2. Step 2: Convert to fraction form
    13,461.48/20,195.56 = 6,446.82/x
  3. Step 3: Cross multiply
    13,461.48x = 20,195.56 × 6,446.82
  4. Step 4: Simplify right side
    13,461.48x = 130,197,140.12
  5. Step 5: Solve for x
    x = 130,197,140.12/13,461.48
  6. Step 6: Final answer
    x = 9,671.83

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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.