Home / 13,281.44-20,001.23-11,570.72

Finding the Fourth Proportional to 13,281.44, 20,001.23 and 11,570.72

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Solution

The fourth proportional to 13,281.44, 20,001.23 and 11,570.72 is: 17,424.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,281.44 : 20,001.23 = 11,570.72 : x
  2. Step 2: Convert to fraction form
    13,281.44/20,001.23 = 11,570.72/x
  3. Step 3: Cross multiply
    13,281.44x = 20,001.23 × 11,570.72
  4. Step 4: Simplify right side
    13,281.44x = 231,428,631.99
  5. Step 5: Solve for x
    x = 231,428,631.99/13,281.44
  6. Step 6: Final answer
    x = 17,424.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.