Home / 13,601.96-20,397.48-4,238.90

Finding the Fourth Proportional to 13,601.96, 20,397.48 and 4,238.90

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Solution

The fourth proportional to 13,601.96, 20,397.48 and 4,238.90 is: 6,356.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,601.96 : 20,397.48 = 4,238.90 : x
  2. Step 2: Convert to fraction form
    13,601.96/20,397.48 = 4,238.90/x
  3. Step 3: Cross multiply
    13,601.96x = 20,397.48 × 4,238.90
  4. Step 4: Simplify right side
    13,601.96x = 86,462,877.97
  5. Step 5: Solve for x
    x = 86,462,877.97/13,601.96
  6. Step 6: Final answer
    x = 6,356.65

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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.