Home / 18,109.90-27,169.47-5,630.03

Finding the Fourth Proportional to 18,109.90, 27,169.47 and 5,630.03

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Solution

The fourth proportional to 18,109.90, 27,169.47 and 5,630.03 is: 8,446.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,109.90 : 27,169.47 = 5,630.03 : x
  2. Step 2: Convert to fraction form
    18,109.90/27,169.47 = 5,630.03/x
  3. Step 3: Cross multiply
    18,109.90x = 27,169.47 × 5,630.03
  4. Step 4: Simplify right side
    18,109.90x = 152,964,931.18
  5. Step 5: Solve for x
    x = 152,964,931.18/18,109.90
  6. Step 6: Final answer
    x = 8,446.48

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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.