Home / 10,039.04-13,821.52-8,619.92

Finding the Fourth Proportional to 10,039.04, 13,821.52 and 8,619.92

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Solution

The fourth proportional to 10,039.04, 13,821.52 and 8,619.92 is: 11,867.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,039.04 : 13,821.52 = 8,619.92 : x
  2. Step 2: Convert to fraction form
    10,039.04/13,821.52 = 8,619.92/x
  3. Step 3: Cross multiply
    10,039.04x = 13,821.52 × 8,619.92
  4. Step 4: Simplify right side
    10,039.04x = 119,140,396.68
  5. Step 5: Solve for x
    x = 119,140,396.68/10,039.04
  6. Step 6: Final answer
    x = 11,867.71

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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.