Home / 13,512.54-18,635.04-8,477.22

Finding the Fourth Proportional to 13,512.54, 18,635.04 and 8,477.22

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Solution

The fourth proportional to 13,512.54, 18,635.04 and 8,477.22 is: 11,690.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,512.54 : 18,635.04 = 8,477.22 : x
  2. Step 2: Convert to fraction form
    13,512.54/18,635.04 = 8,477.22/x
  3. Step 3: Cross multiply
    13,512.54x = 18,635.04 × 8,477.22
  4. Step 4: Simplify right side
    13,512.54x = 157,973,333.79
  5. Step 5: Solve for x
    x = 157,973,333.79/13,512.54
  6. Step 6: Final answer
    x = 11,690.87

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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.