Home / 13,440.13-20,168.80-5,648.94

Finding the Fourth Proportional to 13,440.13, 20,168.80 and 5,648.94

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Solution

The fourth proportional to 13,440.13, 20,168.80 and 5,648.94 is: 8,477.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,440.13 : 20,168.80 = 5,648.94 : x
  2. Step 2: Convert to fraction form
    13,440.13/20,168.80 = 5,648.94/x
  3. Step 3: Cross multiply
    13,440.13x = 20,168.80 × 5,648.94
  4. Step 4: Simplify right side
    13,440.13x = 113,932,326.95
  5. Step 5: Solve for x
    x = 113,932,326.95/13,440.13
  6. Step 6: Final answer
    x = 8,477.03

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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.