Home / 13,757.81-20,636.75-4,992.74

Finding the Fourth Proportional to 13,757.81, 20,636.75 and 4,992.74

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Solution

The fourth proportional to 13,757.81, 20,636.75 and 4,992.74 is: 7,489.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,757.81 : 20,636.75 = 4,992.74 : x
  2. Step 2: Convert to fraction form
    13,757.81/20,636.75 = 4,992.74/x
  3. Step 3: Cross multiply
    13,757.81x = 20,636.75 × 4,992.74
  4. Step 4: Simplify right side
    13,757.81x = 103,033,836.49
  5. Step 5: Solve for x
    x = 103,033,836.49/13,757.81
  6. Step 6: Final answer
    x = 7,489.11

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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.