Home / 12,895.12-17,798.70-7,591.60

Finding the Fourth Proportional to 12,895.12, 17,798.70 and 7,591.60

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Solution

The fourth proportional to 12,895.12, 17,798.70 and 7,591.60 is: 10,478.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,895.12 : 17,798.70 = 7,591.60 : x
  2. Step 2: Convert to fraction form
    12,895.12/17,798.70 = 7,591.60/x
  3. Step 3: Cross multiply
    12,895.12x = 17,798.70 × 7,591.60
  4. Step 4: Simplify right side
    12,895.12x = 135,120,610.92
  5. Step 5: Solve for x
    x = 135,120,610.92/12,895.12
  6. Step 6: Final answer
    x = 10,478.43

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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.