Home / 10,220.22-15,334.65-4,379.58

Finding the Fourth Proportional to 10,220.22, 15,334.65 and 4,379.58

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Solution

The fourth proportional to 10,220.22, 15,334.65 and 4,379.58 is: 6,571.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,220.22 : 15,334.65 = 4,379.58 : x
  2. Step 2: Convert to fraction form
    10,220.22/15,334.65 = 4,379.58/x
  3. Step 3: Cross multiply
    10,220.22x = 15,334.65 × 4,379.58
  4. Step 4: Simplify right side
    10,220.22x = 67,159,326.45
  5. Step 5: Solve for x
    x = 67,159,326.45/10,220.22
  6. Step 6: Final answer
    x = 6,571.22

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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.