Home / 13,860.19-20,789.61-5,094.55

Finding the Fourth Proportional to 13,860.19, 20,789.61 and 5,094.55

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Solution

The fourth proportional to 13,860.19, 20,789.61 and 5,094.55 is: 7,641.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,860.19 : 20,789.61 = 5,094.55 : x
  2. Step 2: Convert to fraction form
    13,860.19/20,789.61 = 5,094.55/x
  3. Step 3: Cross multiply
    13,860.19x = 20,789.61 × 5,094.55
  4. Step 4: Simplify right side
    13,860.19x = 105,913,707.63
  5. Step 5: Solve for x
    x = 105,913,707.63/13,860.19
  6. Step 6: Final answer
    x = 7,641.58

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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.