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Finding the Fourth Proportional to 15,276.68, 22,917.74 and 7,879.14

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Solution

The fourth proportional to 15,276.68, 22,917.74 and 7,879.14 is: 11,820.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,276.68 : 22,917.74 = 7,879.14 : x
  2. Step 2: Convert to fraction form
    15,276.68/22,917.74 = 7,879.14/x
  3. Step 3: Cross multiply
    15,276.68x = 22,917.74 × 7,879.14
  4. Step 4: Simplify right side
    15,276.68x = 180,572,081.94
  5. Step 5: Solve for x
    x = 180,572,081.94/15,276.68
  6. Step 6: Final answer
    x = 11,820.11

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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.