Home / 12,382.37-18,572.87-9,054.03

Finding the Fourth Proportional to 12,382.37, 18,572.87 and 9,054.03

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Solution

The fourth proportional to 12,382.37, 18,572.87 and 9,054.03 is: 13,580.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,382.37 : 18,572.87 = 9,054.03 : x
  2. Step 2: Convert to fraction form
    12,382.37/18,572.87 = 9,054.03/x
  3. Step 3: Cross multiply
    12,382.37x = 18,572.87 × 9,054.03
  4. Step 4: Simplify right side
    12,382.37x = 168,159,414.45
  5. Step 5: Solve for x
    x = 168,159,414.45/12,382.37
  6. Step 6: Final answer
    x = 13,580.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.