Home / 13,762.20-20,643.30-8,232.60

Finding the Fourth Proportional to 13,762.20, 20,643.30 and 8,232.60

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Solution

The fourth proportional to 13,762.20, 20,643.30 and 8,232.60 is: 12,348.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,762.20 : 20,643.30 = 8,232.60 : x
  2. Step 2: Convert to fraction form
    13,762.20/20,643.30 = 8,232.60/x
  3. Step 3: Cross multiply
    13,762.20x = 20,643.30 × 8,232.60
  4. Step 4: Simplify right side
    13,762.20x = 169,948,031.58
  5. Step 5: Solve for x
    x = 169,948,031.58/13,762.20
  6. Step 6: Final answer
    x = 12,348.90

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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.