Home / 12,062.70-18,096.45-10,128.30

Finding the Fourth Proportional to 12,062.70, 18,096.45 and 10,128.30

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Solution

The fourth proportional to 12,062.70, 18,096.45 and 10,128.30 is: 15,194.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,062.70 : 18,096.45 = 10,128.30 : x
  2. Step 2: Convert to fraction form
    12,062.70/18,096.45 = 10,128.30/x
  3. Step 3: Cross multiply
    12,062.70x = 18,096.45 × 10,128.30
  4. Step 4: Simplify right side
    12,062.70x = 183,286,274.54
  5. Step 5: Solve for x
    x = 183,286,274.54/12,062.70
  6. Step 6: Final answer
    x = 15,194.47

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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.