Home / 13,200.60-19,772.10-10,255.80

Finding the Fourth Proportional to 13,200.60, 19,772.10 and 10,255.80

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Solution

The fourth proportional to 13,200.60, 19,772.10 and 10,255.80 is: 15,361.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,200.60 : 19,772.10 = 10,255.80 : x
  2. Step 2: Convert to fraction form
    13,200.60/19,772.10 = 10,255.80/x
  3. Step 3: Cross multiply
    13,200.60x = 19,772.10 × 10,255.80
  4. Step 4: Simplify right side
    13,200.60x = 202,778,703.18
  5. Step 5: Solve for x
    x = 202,778,703.18/13,200.60
  6. Step 6: Final answer
    x = 15,361.32

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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.