Home / 12,097.68-18,139.88-3,775.46

Finding the Fourth Proportional to 12,097.68, 18,139.88 and 3,775.46

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Solution

The fourth proportional to 12,097.68, 18,139.88 and 3,775.46 is: 5,661.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,097.68 : 18,139.88 = 3,775.46 : x
  2. Step 2: Convert to fraction form
    12,097.68/18,139.88 = 3,775.46/x
  3. Step 3: Cross multiply
    12,097.68x = 18,139.88 × 3,775.46
  4. Step 4: Simplify right side
    12,097.68x = 68,486,391.34
  5. Step 5: Solve for x
    x = 68,486,391.34/12,097.68
  6. Step 6: Final answer
    x = 5,661.12

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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.