Home / 12,161.42-18,244.02-5,141.46

Finding the Fourth Proportional to 12,161.42, 18,244.02 and 5,141.46

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Solution

The fourth proportional to 12,161.42, 18,244.02 and 5,141.46 is: 7,712.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,161.42 : 18,244.02 = 5,141.46 : x
  2. Step 2: Convert to fraction form
    12,161.42/18,244.02 = 5,141.46/x
  3. Step 3: Cross multiply
    12,161.42x = 18,244.02 × 5,141.46
  4. Step 4: Simplify right side
    12,161.42x = 93,800,855.22
  5. Step 5: Solve for x
    x = 93,800,855.22/12,161.42
  6. Step 6: Final answer
    x = 7,712.98

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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.