Home / 12,592.81-17,378.66-7,286.60

Finding the Fourth Proportional to 12,592.81, 17,378.66 and 7,286.60

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Solution

The fourth proportional to 12,592.81, 17,378.66 and 7,286.60 is: 10,055.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,592.81 : 17,378.66 = 7,286.60 : x
  2. Step 2: Convert to fraction form
    12,592.81/17,378.66 = 7,286.60/x
  3. Step 3: Cross multiply
    12,592.81x = 17,378.66 × 7,286.60
  4. Step 4: Simplify right side
    12,592.81x = 126,631,220.63
  5. Step 5: Solve for x
    x = 126,631,220.63/12,592.81
  6. Step 6: Final answer
    x = 10,055.84

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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.