Home / 13,103.62-19,656.14-3,742.90

Finding the Fourth Proportional to 13,103.62, 19,656.14 and 3,742.90

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Solution

The fourth proportional to 13,103.62, 19,656.14 and 3,742.90 is: 5,614.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,103.62 : 19,656.14 = 3,742.90 : x
  2. Step 2: Convert to fraction form
    13,103.62/19,656.14 = 3,742.90/x
  3. Step 3: Cross multiply
    13,103.62x = 19,656.14 × 3,742.90
  4. Step 4: Simplify right side
    13,103.62x = 73,570,966.41
  5. Step 5: Solve for x
    x = 73,570,966.41/13,103.62
  6. Step 6: Final answer
    x = 5,614.55

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1.5x scale

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.