Home / 10,221.79-14,106.20-6,188.57

Finding the Fourth Proportional to 10,221.79, 14,106.20 and 6,188.57

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Solution

The fourth proportional to 10,221.79, 14,106.20 and 6,188.57 is: 8,540.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,221.79 : 14,106.20 = 6,188.57 : x
  2. Step 2: Convert to fraction form
    10,221.79/14,106.20 = 6,188.57/x
  3. Step 3: Cross multiply
    10,221.79x = 14,106.20 × 6,188.57
  4. Step 4: Simplify right side
    10,221.79x = 87,297,206.13
  5. Step 5: Solve for x
    x = 87,297,206.13/10,221.79
  6. Step 6: Final answer
    x = 8,540.31

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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.