Home / 13,726.32-20,580.48-5,407.44

Finding the Fourth Proportional to 13,726.32, 20,580.48 and 5,407.44

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Solution

The fourth proportional to 13,726.32, 20,580.48 and 5,407.44 is: 8,107.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,726.32 : 20,580.48 = 5,407.44 : x
  2. Step 2: Convert to fraction form
    13,726.32/20,580.48 = 5,407.44/x
  3. Step 3: Cross multiply
    13,726.32x = 20,580.48 × 5,407.44
  4. Step 4: Simplify right side
    13,726.32x = 111,287,710.77
  5. Step 5: Solve for x
    x = 111,287,710.77/13,726.32
  6. Step 6: Final answer
    x = 8,107.61

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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.