Home / 18,675.70-28,002.06-9,175.93

Finding the Fourth Proportional to 18,675.70, 28,002.06 and 9,175.93

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Solution

The fourth proportional to 18,675.70, 28,002.06 and 9,175.93 is: 13,758.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,675.70 : 28,002.06 = 9,175.93 : x
  2. Step 2: Convert to fraction form
    18,675.70/28,002.06 = 9,175.93/x
  3. Step 3: Cross multiply
    18,675.70x = 28,002.06 × 9,175.93
  4. Step 4: Simplify right side
    18,675.70x = 256,944,942.42
  5. Step 5: Solve for x
    x = 256,944,942.42/18,675.70
  6. Step 6: Final answer
    x = 13,758.25

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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.