Home / 15,007.03-20,709.75-8,201.14

Finding the Fourth Proportional to 15,007.03, 20,709.75 and 8,201.14

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Solution

The fourth proportional to 15,007.03, 20,709.75 and 8,201.14 is: 11,317.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,007.03 : 20,709.75 = 8,201.14 : x
  2. Step 2: Convert to fraction form
    15,007.03/20,709.75 = 8,201.14/x
  3. Step 3: Cross multiply
    15,007.03x = 20,709.75 × 8,201.14
  4. Step 4: Simplify right side
    15,007.03x = 169,843,485.91
  5. Step 5: Solve for x
    x = 169,843,485.91/15,007.03
  6. Step 6: Final answer
    x = 11,317.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.