Home / 18,845.89-28,260.63-9,480.06

Finding the Fourth Proportional to 18,845.89, 28,260.63 and 9,480.06

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Solution

The fourth proportional to 18,845.89, 28,260.63 and 9,480.06 is: 14,215.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,845.89 : 28,260.63 = 9,480.06 : x
  2. Step 2: Convert to fraction form
    18,845.89/28,260.63 = 9,480.06/x
  3. Step 3: Cross multiply
    18,845.89x = 28,260.63 × 9,480.06
  4. Step 4: Simplify right side
    18,845.89x = 267,912,468.04
  5. Step 5: Solve for x
    x = 267,912,468.04/18,845.89
  6. Step 6: Final answer
    x = 14,215.96

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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.