Home / 13,512.42-20,254.80-7,656.66

Finding the Fourth Proportional to 13,512.42, 20,254.80 and 7,656.66

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Solution

The fourth proportional to 13,512.42, 20,254.80 and 7,656.66 is: 11,477.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,512.42 : 20,254.80 = 7,656.66 : x
  2. Step 2: Convert to fraction form
    13,512.42/20,254.80 = 7,656.66/x
  3. Step 3: Cross multiply
    13,512.42x = 20,254.80 × 7,656.66
  4. Step 4: Simplify right side
    13,512.42x = 155,084,116.97
  5. Step 5: Solve for x
    x = 155,084,116.97/13,512.42
  6. Step 6: Final answer
    x = 11,477.15

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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.