Home / 15,981.05-23,971.78-6,120.92

Finding the Fourth Proportional to 15,981.05, 23,971.78 and 6,120.92

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Solution

The fourth proportional to 15,981.05, 23,971.78 and 6,120.92 is: 9,181.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,981.05 : 23,971.78 = 6,120.92 : x
  2. Step 2: Convert to fraction form
    15,981.05/23,971.78 = 6,120.92/x
  3. Step 3: Cross multiply
    15,981.05x = 23,971.78 × 6,120.92
  4. Step 4: Simplify right side
    15,981.05x = 146,729,415.22
  5. Step 5: Solve for x
    x = 146,729,415.22/15,981.05
  6. Step 6: Final answer
    x = 9,181.46

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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.