Home / 14,760.20-20,355.80-9,722.60

Finding the Fourth Proportional to 14,760.20, 20,355.80 and 9,722.60

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Solution

The fourth proportional to 14,760.20, 20,355.80 and 9,722.60 is: 13,408.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,760.20 : 20,355.80 = 9,722.60 : x
  2. Step 2: Convert to fraction form
    14,760.20/20,355.80 = 9,722.60/x
  3. Step 3: Cross multiply
    14,760.20x = 20,355.80 × 9,722.60
  4. Step 4: Simplify right side
    14,760.20x = 197,911,150.69
  5. Step 5: Solve for x
    x = 197,911,150.69/14,760.20
  6. Step 6: Final answer
    x = 13,408.44

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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.