Home / 13,255.37-18,292.87-7,287.58

Finding the Fourth Proportional to 13,255.37, 18,292.87 and 7,287.58

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Solution

The fourth proportional to 13,255.37, 18,292.87 and 7,287.58 is: 10,057.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,255.37 : 18,292.87 = 7,287.58 : x
  2. Step 2: Convert to fraction form
    13,255.37/18,292.87 = 7,287.58/x
  3. Step 3: Cross multiply
    13,255.37x = 18,292.87 × 7,287.58
  4. Step 4: Simplify right side
    13,255.37x = 133,310,753.55
  5. Step 5: Solve for x
    x = 133,310,753.55/13,255.37
  6. Step 6: Final answer
    x = 10,057.11

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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.