Home / 9,079.74-13,619.69-2,505.78

Finding the Fourth Proportional to 9,079.74, 13,619.69 and 2,505.78

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Solution

The fourth proportional to 9,079.74, 13,619.69 and 2,505.78 is: 3,758.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,079.74 : 13,619.69 = 2,505.78 : x
  2. Step 2: Convert to fraction form
    9,079.74/13,619.69 = 2,505.78/x
  3. Step 3: Cross multiply
    9,079.74x = 13,619.69 × 2,505.78
  4. Step 4: Simplify right side
    9,079.74x = 34,127,946.81
  5. Step 5: Solve for x
    x = 34,127,946.81/9,079.74
  6. Step 6: Final answer
    x = 3,758.69

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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.