Home / 13,447.18-20,168.04-8,447.32

Finding the Fourth Proportional to 13,447.18, 20,168.04 and 8,447.32

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Solution

The fourth proportional to 13,447.18, 20,168.04 and 8,447.32 is: 12,669.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,447.18 : 20,168.04 = 8,447.32 : x
  2. Step 2: Convert to fraction form
    13,447.18/20,168.04 = 8,447.32/x
  3. Step 3: Cross multiply
    13,447.18x = 20,168.04 × 8,447.32
  4. Step 4: Simplify right side
    13,447.18x = 170,365,887.65
  5. Step 5: Solve for x
    x = 170,365,887.65/13,447.18
  6. Step 6: Final answer
    x = 12,669.27

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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.