Home / 18,743.57-28,101.47-11,346.28

Finding the Fourth Proportional to 18,743.57, 28,101.47 and 11,346.28

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Solution

The fourth proportional to 18,743.57, 28,101.47 and 11,346.28 is: 17,011.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,743.57 : 28,101.47 = 11,346.28 : x
  2. Step 2: Convert to fraction form
    18,743.57/28,101.47 = 11,346.28/x
  3. Step 3: Cross multiply
    18,743.57x = 28,101.47 × 11,346.28
  4. Step 4: Simplify right side
    18,743.57x = 318,847,217.29
  5. Step 5: Solve for x
    x = 318,847,217.29/18,743.57
  6. Step 6: Final answer
    x = 17,011.02

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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.