Home / 11,619.39-17,430.53-3,830.91

Finding the Fourth Proportional to 11,619.39, 17,430.53 and 3,830.91

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Solution

The fourth proportional to 11,619.39, 17,430.53 and 3,830.91 is: 5,746.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,619.39 : 17,430.53 = 3,830.91 : x
  2. Step 2: Convert to fraction form
    11,619.39/17,430.53 = 3,830.91/x
  3. Step 3: Cross multiply
    11,619.39x = 17,430.53 × 3,830.91
  4. Step 4: Simplify right side
    11,619.39x = 66,774,772.53
  5. Step 5: Solve for x
    x = 66,774,772.53/11,619.39
  6. Step 6: Final answer
    x = 5,746.84

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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.