Home / 10,555.86-15,833.67-4,319.22

Finding the Fourth Proportional to 10,555.86, 15,833.67 and 4,319.22

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Solution

The fourth proportional to 10,555.86, 15,833.67 and 4,319.22 is: 6,478.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,555.86 : 15,833.67 = 4,319.22 : x
  2. Step 2: Convert to fraction form
    10,555.86/15,833.67 = 4,319.22/x
  3. Step 3: Cross multiply
    10,555.86x = 15,833.67 × 4,319.22
  4. Step 4: Simplify right side
    10,555.86x = 68,389,104.14
  5. Step 5: Solve for x
    x = 68,389,104.14/10,555.86
  6. Step 6: Final answer
    x = 6,478.78

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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.