Home / 13,255.56-18,292.90-7,287.48

Finding the Fourth Proportional to 13,255.56, 18,292.90 and 7,287.48

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Solution

The fourth proportional to 13,255.56, 18,292.90 and 7,287.48 is: 10,056.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,255.56 : 18,292.90 = 7,287.48 : x
  2. Step 2: Convert to fraction form
    13,255.56/18,292.90 = 7,287.48/x
  3. Step 3: Cross multiply
    13,255.56x = 18,292.90 × 7,287.48
  4. Step 4: Simplify right side
    13,255.56x = 133,309,142.89
  5. Step 5: Solve for x
    x = 133,309,142.89/13,255.56
  6. Step 6: Final answer
    x = 10,056.85

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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.