Home / 13,542.88-20,320.08-6,519.52

Finding the Fourth Proportional to 13,542.88, 20,320.08 and 6,519.52

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Solution

The fourth proportional to 13,542.88, 20,320.08 and 6,519.52 is: 9,782.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,542.88 : 20,320.08 = 6,519.52 : x
  2. Step 2: Convert to fraction form
    13,542.88/20,320.08 = 6,519.52/x
  3. Step 3: Cross multiply
    13,542.88x = 20,320.08 × 6,519.52
  4. Step 4: Simplify right side
    13,542.88x = 132,477,167.96
  5. Step 5: Solve for x
    x = 132,477,167.96/13,542.88
  6. Step 6: Final answer
    x = 9,782.05

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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.