Home / 14,799.50-20,423.20-8,085.14

Finding the Fourth Proportional to 14,799.50, 20,423.20 and 8,085.14

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Solution

The fourth proportional to 14,799.50, 20,423.20 and 8,085.14 is: 11,157.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,799.50 : 20,423.20 = 8,085.14 : x
  2. Step 2: Convert to fraction form
    14,799.50/20,423.20 = 8,085.14/x
  3. Step 3: Cross multiply
    14,799.50x = 20,423.20 × 8,085.14
  4. Step 4: Simplify right side
    14,799.50x = 165,124,431.25
  5. Step 5: Solve for x
    x = 165,124,431.25/14,799.50
  6. Step 6: Final answer
    x = 11,157.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.