Home / 13,619.64-18,794.67-7,569.86

Finding the Fourth Proportional to 13,619.64, 18,794.67 and 7,569.86

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Solution

The fourth proportional to 13,619.64, 18,794.67 and 7,569.86 is: 10,446.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,619.64 : 18,794.67 = 7,569.86 : x
  2. Step 2: Convert to fraction form
    13,619.64/18,794.67 = 7,569.86/x
  3. Step 3: Cross multiply
    13,619.64x = 18,794.67 × 7,569.86
  4. Step 4: Simplify right side
    13,619.64x = 142,272,898.29
  5. Step 5: Solve for x
    x = 142,272,898.29/13,619.64
  6. Step 6: Final answer
    x = 10,446.15

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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.