Home / 13,410.20-20,110.15-6,384.80

Finding the Fourth Proportional to 13,410.20, 20,110.15 and 6,384.80

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Solution

The fourth proportional to 13,410.20, 20,110.15 and 6,384.80 is: 9,574.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,410.20 : 20,110.15 = 6,384.80 : x
  2. Step 2: Convert to fraction form
    13,410.20/20,110.15 = 6,384.80/x
  3. Step 3: Cross multiply
    13,410.20x = 20,110.15 × 6,384.80
  4. Step 4: Simplify right side
    13,410.20x = 128,399,285.72
  5. Step 5: Solve for x
    x = 128,399,285.72/13,410.20
  6. Step 6: Final answer
    x = 9,574.75

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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.