Home / 15,980.94-23,971.64-6,120.72

Finding the Fourth Proportional to 15,980.94, 23,971.64 and 6,120.72

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Solution

The fourth proportional to 15,980.94, 23,971.64 and 6,120.72 is: 9,181.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,980.94 : 23,971.64 = 6,120.72 : x
  2. Step 2: Convert to fraction form
    15,980.94/23,971.64 = 6,120.72/x
  3. Step 3: Cross multiply
    15,980.94x = 23,971.64 × 6,120.72
  4. Step 4: Simplify right side
    15,980.94x = 146,723,665.78
  5. Step 5: Solve for x
    x = 146,723,665.78/15,980.94
  6. Step 6: Final answer
    x = 9,181.17

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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.