Home / 13,890.39-20,837.42-4,527.13

Finding the Fourth Proportional to 13,890.39, 20,837.42 and 4,527.13

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Solution

The fourth proportional to 13,890.39, 20,837.42 and 4,527.13 is: 6,791.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,890.39 : 20,837.42 = 4,527.13 : x
  2. Step 2: Convert to fraction form
    13,890.39/20,837.42 = 4,527.13/x
  3. Step 3: Cross multiply
    13,890.39x = 20,837.42 × 4,527.13
  4. Step 4: Simplify right side
    13,890.39x = 94,333,709.20
  5. Step 5: Solve for x
    x = 94,333,709.20/13,890.39
  6. Step 6: Final answer
    x = 6,791.29

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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.