Home / 13,391.87-20,070.36-7,468.52

Finding the Fourth Proportional to 13,391.87, 20,070.36 and 7,468.52

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Solution

The fourth proportional to 13,391.87, 20,070.36 and 7,468.52 is: 11,193.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,391.87 : 20,070.36 = 7,468.52 : x
  2. Step 2: Convert to fraction form
    13,391.87/20,070.36 = 7,468.52/x
  3. Step 3: Cross multiply
    13,391.87x = 20,070.36 × 7,468.52
  4. Step 4: Simplify right side
    13,391.87x = 149,895,784.72
  5. Step 5: Solve for x
    x = 149,895,784.72/13,391.87
  6. Step 6: Final answer
    x = 11,193.05

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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.