Home / 13,805.66-19,052.60-8,143.72

Finding the Fourth Proportional to 13,805.66, 19,052.60 and 8,143.72

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Solution

The fourth proportional to 13,805.66, 19,052.60 and 8,143.72 is: 11,238.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,805.66 : 19,052.60 = 8,143.72 : x
  2. Step 2: Convert to fraction form
    13,805.66/19,052.60 = 8,143.72/x
  3. Step 3: Cross multiply
    13,805.66x = 19,052.60 × 8,143.72
  4. Step 4: Simplify right side
    13,805.66x = 155,158,951.32
  5. Step 5: Solve for x
    x = 155,158,951.32/13,805.66
  6. Step 6: Final answer
    x = 11,238.79

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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.