Home / 13,542.48-20,313.63-3,681.72

Finding the Fourth Proportional to 13,542.48, 20,313.63 and 3,681.72

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Solution

The fourth proportional to 13,542.48, 20,313.63 and 3,681.72 is: 5,522.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,542.48 : 20,313.63 = 3,681.72 : x
  2. Step 2: Convert to fraction form
    13,542.48/20,313.63 = 3,681.72/x
  3. Step 3: Cross multiply
    13,542.48x = 20,313.63 × 3,681.72
  4. Step 4: Simplify right side
    13,542.48x = 74,789,097.84
  5. Step 5: Solve for x
    x = 74,789,097.84/13,542.48
  6. Step 6: Final answer
    x = 5,522.56

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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.