Home / 15,004.26-20,705.16-8,289.94

Finding the Fourth Proportional to 15,004.26, 20,705.16 and 8,289.94

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Solution

The fourth proportional to 15,004.26, 20,705.16 and 8,289.94 is: 11,439.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,004.26 : 20,705.16 = 8,289.94 : x
  2. Step 2: Convert to fraction form
    15,004.26/20,705.16 = 8,289.94/x
  3. Step 3: Cross multiply
    15,004.26x = 20,705.16 × 8,289.94
  4. Step 4: Simplify right side
    15,004.26x = 171,644,534.09
  5. Step 5: Solve for x
    x = 171,644,534.09/15,004.26
  6. Step 6: Final answer
    x = 11,439.72

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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.