Home / 10,305.86-15,455.75-4,382.74

Finding the Fourth Proportional to 10,305.86, 15,455.75 and 4,382.74

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Solution

The fourth proportional to 10,305.86, 15,455.75 and 4,382.74 is: 6,572.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,305.86 : 15,455.75 = 4,382.74 : x
  2. Step 2: Convert to fraction form
    10,305.86/15,455.75 = 4,382.74/x
  3. Step 3: Cross multiply
    10,305.86x = 15,455.75 × 4,382.74
  4. Step 4: Simplify right side
    10,305.86x = 67,738,456.48
  5. Step 5: Solve for x
    x = 67,738,456.48/10,305.86
  6. Step 6: Final answer
    x = 6,572.81

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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.