Home / 12,650.20-18,981.06-5,260.12

Finding the Fourth Proportional to 12,650.20, 18,981.06 and 5,260.12

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Solution

The fourth proportional to 12,650.20, 18,981.06 and 5,260.12 is: 7,892.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,650.20 : 18,981.06 = 5,260.12 : x
  2. Step 2: Convert to fraction form
    12,650.20/18,981.06 = 5,260.12/x
  3. Step 3: Cross multiply
    12,650.20x = 18,981.06 × 5,260.12
  4. Step 4: Simplify right side
    12,650.20x = 99,842,653.33
  5. Step 5: Solve for x
    x = 99,842,653.33/12,650.20
  6. Step 6: Final answer
    x = 7,892.58

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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.