Home / 13,212.85-18,221.36-10,532.96

Finding the Fourth Proportional to 13,212.85, 18,221.36 and 10,532.96

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Solution

The fourth proportional to 13,212.85, 18,221.36 and 10,532.96 is: 14,525.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,212.85 : 18,221.36 = 10,532.96 : x
  2. Step 2: Convert to fraction form
    13,212.85/18,221.36 = 10,532.96/x
  3. Step 3: Cross multiply
    13,212.85x = 18,221.36 × 10,532.96
  4. Step 4: Simplify right side
    13,212.85x = 191,924,831.83
  5. Step 5: Solve for x
    x = 191,924,831.83/13,212.85
  6. Step 6: Final answer
    x = 14,525.62

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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.