Home / 13,634.87-20,445.75-8,088.93

Finding the Fourth Proportional to 13,634.87, 20,445.75 and 8,088.93

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Solution

The fourth proportional to 13,634.87, 20,445.75 and 8,088.93 is: 12,129.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,634.87 : 20,445.75 = 8,088.93 : x
  2. Step 2: Convert to fraction form
    13,634.87/20,445.75 = 8,088.93/x
  3. Step 3: Cross multiply
    13,634.87x = 20,445.75 × 8,088.93
  4. Step 4: Simplify right side
    13,634.87x = 165,384,240.55
  5. Step 5: Solve for x
    x = 165,384,240.55/13,634.87
  6. Step 6: Final answer
    x = 12,129.51

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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.