Home / 13,203.38-19,808.31-6,613.22

Finding the Fourth Proportional to 13,203.38, 19,808.31 and 6,613.22

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Solution

The fourth proportional to 13,203.38, 19,808.31 and 6,613.22 is: 9,921.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,203.38 : 19,808.31 = 6,613.22 : x
  2. Step 2: Convert to fraction form
    13,203.38/19,808.31 = 6,613.22/x
  3. Step 3: Cross multiply
    13,203.38x = 19,808.31 × 6,613.22
  4. Step 4: Simplify right side
    13,203.38x = 130,996,711.86
  5. Step 5: Solve for x
    x = 130,996,711.86/13,203.38
  6. Step 6: Final answer
    x = 9,921.45

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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.