Home / 12,882.15-19,316.13-3,995.02

Finding the Fourth Proportional to 12,882.15, 19,316.13 and 3,995.02

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Solution

The fourth proportional to 12,882.15, 19,316.13 and 3,995.02 is: 5,990.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,882.15 : 19,316.13 = 3,995.02 : x
  2. Step 2: Convert to fraction form
    12,882.15/19,316.13 = 3,995.02/x
  3. Step 3: Cross multiply
    12,882.15x = 19,316.13 × 3,995.02
  4. Step 4: Simplify right side
    12,882.15x = 77,168,325.67
  5. Step 5: Solve for x
    x = 77,168,325.67/12,882.15
  6. Step 6: Final answer
    x = 5,990.33

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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.