Home / 13,159.50-19,741.50-5,763.78

Finding the Fourth Proportional to 13,159.50, 19,741.50 and 5,763.78

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Solution

The fourth proportional to 13,159.50, 19,741.50 and 5,763.78 is: 8,646.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,159.50 : 19,741.50 = 5,763.78 : x
  2. Step 2: Convert to fraction form
    13,159.50/19,741.50 = 5,763.78/x
  3. Step 3: Cross multiply
    13,159.50x = 19,741.50 × 5,763.78
  4. Step 4: Simplify right side
    13,159.50x = 113,785,662.87
  5. Step 5: Solve for x
    x = 113,785,662.87/13,159.50
  6. Step 6: Final answer
    x = 8,646.66

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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.