Home / 18,528.39-27,783.56-9,165.39

Finding the Fourth Proportional to 18,528.39, 27,783.56 and 9,165.39

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Solution

The fourth proportional to 18,528.39, 27,783.56 and 9,165.39 is: 13,743.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,528.39 : 27,783.56 = 9,165.39 : x
  2. Step 2: Convert to fraction form
    18,528.39/27,783.56 = 9,165.39/x
  3. Step 3: Cross multiply
    18,528.39x = 27,783.56 × 9,165.39
  4. Step 4: Simplify right side
    18,528.39x = 254,647,117.16
  5. Step 5: Solve for x
    x = 254,647,117.16/18,528.39
  6. Step 6: Final answer
    x = 13,743.62

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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.