Home / 12,917.28-17,822.94-7,612.59

Finding the Fourth Proportional to 12,917.28, 17,822.94 and 7,612.59

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Solution

The fourth proportional to 12,917.28, 17,822.94 and 7,612.59 is: 10,503.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,917.28 : 17,822.94 = 7,612.59 : x
  2. Step 2: Convert to fraction form
    12,917.28/17,822.94 = 7,612.59/x
  3. Step 3: Cross multiply
    12,917.28x = 17,822.94 × 7,612.59
  4. Step 4: Simplify right side
    12,917.28x = 135,678,734.81
  5. Step 5: Solve for x
    x = 135,678,734.81/12,917.28
  6. Step 6: Final answer
    x = 10,503.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.