Home / 18,528.40-27,792.60-9,164.80

Finding the Fourth Proportional to 18,528.40, 27,792.60 and 9,164.80

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Solution

The fourth proportional to 18,528.40, 27,792.60 and 9,164.80 is: 13,747.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,528.40 : 27,792.60 = 9,164.80 : x
  2. Step 2: Convert to fraction form
    18,528.40/27,792.60 = 9,164.80/x
  3. Step 3: Cross multiply
    18,528.40x = 27,792.60 × 9,164.80
  4. Step 4: Simplify right side
    18,528.40x = 254,713,620.48
  5. Step 5: Solve for x
    x = 254,713,620.48/18,528.40
  6. Step 6: Final answer
    x = 13,747.20

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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.