Home / 12,076.79-18,120.40-6,534.04

Finding the Fourth Proportional to 12,076.79, 18,120.40 and 6,534.04

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Solution

The fourth proportional to 12,076.79, 18,120.40 and 6,534.04 is: 9,803.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,076.79 : 18,120.40 = 6,534.04 : x
  2. Step 2: Convert to fraction form
    12,076.79/18,120.40 = 6,534.04/x
  3. Step 3: Cross multiply
    12,076.79x = 18,120.40 × 6,534.04
  4. Step 4: Simplify right side
    12,076.79x = 118,399,418.42
  5. Step 5: Solve for x
    x = 118,399,418.42/12,076.79
  6. Step 6: Final answer
    x = 9,803.88

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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.