Home / 13,274.33-20,000.12-12,009.36

Finding the Fourth Proportional to 13,274.33, 20,000.12 and 12,009.36

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Solution

The fourth proportional to 13,274.33, 20,000.12 and 12,009.36 is: 18,094.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,274.33 : 20,000.12 = 12,009.36 : x
  2. Step 2: Convert to fraction form
    13,274.33/20,000.12 = 12,009.36/x
  3. Step 3: Cross multiply
    13,274.33x = 20,000.12 × 12,009.36
  4. Step 4: Simplify right side
    13,274.33x = 240,188,656.08
  5. Step 5: Solve for x
    x = 240,188,656.08/13,274.33
  6. Step 6: Final answer
    x = 18,094.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.