Home / 13,542.57-20,291.99-5,212.83

Finding the Fourth Proportional to 13,542.57, 20,291.99 and 5,212.83

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Solution

The fourth proportional to 13,542.57, 20,291.99 and 5,212.83 is: 7,810.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,542.57 : 20,291.99 = 5,212.83 : x
  2. Step 2: Convert to fraction form
    13,542.57/20,291.99 = 5,212.83/x
  3. Step 3: Cross multiply
    13,542.57x = 20,291.99 × 5,212.83
  4. Step 4: Simplify right side
    13,542.57x = 105,778,744.26
  5. Step 5: Solve for x
    x = 105,778,744.26/13,542.57
  6. Step 6: Final answer
    x = 7,810.83

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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.