Home / 18,868.39-28,277.05-7,175.23

Finding the Fourth Proportional to 18,868.39, 28,277.05 and 7,175.23

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Solution

The fourth proportional to 18,868.39, 28,277.05 and 7,175.23 is: 10,753.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,868.39 : 28,277.05 = 7,175.23 : x
  2. Step 2: Convert to fraction form
    18,868.39/28,277.05 = 7,175.23/x
  3. Step 3: Cross multiply
    18,868.39x = 28,277.05 × 7,175.23
  4. Step 4: Simplify right side
    18,868.39x = 202,894,421.35
  5. Step 5: Solve for x
    x = 202,894,421.35/18,868.39
  6. Step 6: Final answer
    x = 10,753.14

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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.