Home / 12,783.75-17,641.58-7,194.87

Finding the Fourth Proportional to 12,783.75, 17,641.58 and 7,194.87

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Solution

The fourth proportional to 12,783.75, 17,641.58 and 7,194.87 is: 9,928.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,783.75 : 17,641.58 = 7,194.87 : x
  2. Step 2: Convert to fraction form
    12,783.75/17,641.58 = 7,194.87/x
  3. Step 3: Cross multiply
    12,783.75x = 17,641.58 × 7,194.87
  4. Step 4: Simplify right side
    12,783.75x = 126,928,874.69
  5. Step 5: Solve for x
    x = 126,928,874.69/12,783.75
  6. Step 6: Final answer
    x = 9,928.92

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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.