Home / 13,388.48-20,066.79-10,090.70

Finding the Fourth Proportional to 13,388.48, 20,066.79 and 10,090.70

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Solution

The fourth proportional to 13,388.48, 20,066.79 and 10,090.70 is: 15,124.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,388.48 : 20,066.79 = 10,090.70 : x
  2. Step 2: Convert to fraction form
    13,388.48/20,066.79 = 10,090.70/x
  3. Step 3: Cross multiply
    13,388.48x = 20,066.79 × 10,090.70
  4. Step 4: Simplify right side
    13,388.48x = 202,487,957.85
  5. Step 5: Solve for x
    x = 202,487,957.85/13,388.48
  6. Step 6: Final answer
    x = 15,124.04

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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.