Home / 10,725.66-14,808.51-8,220.86

Finding the Fourth Proportional to 10,725.66, 14,808.51 and 8,220.86

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Solution

The fourth proportional to 10,725.66, 14,808.51 and 8,220.86 is: 11,350.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,725.66 : 14,808.51 = 8,220.86 : x
  2. Step 2: Convert to fraction form
    10,725.66/14,808.51 = 8,220.86/x
  3. Step 3: Cross multiply
    10,725.66x = 14,808.51 × 8,220.86
  4. Step 4: Simplify right side
    10,725.66x = 121,738,613.48
  5. Step 5: Solve for x
    x = 121,738,613.48/10,725.66
  6. Step 6: Final answer
    x = 11,350.22

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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.