Home / 12,265.16-18,379.90-9,290.84

Finding the Fourth Proportional to 12,265.16, 18,379.90 and 9,290.84

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Solution

The fourth proportional to 12,265.16, 18,379.90 and 9,290.84 is: 13,922.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,265.16 : 18,379.90 = 9,290.84 : x
  2. Step 2: Convert to fraction form
    12,265.16/18,379.90 = 9,290.84/x
  3. Step 3: Cross multiply
    12,265.16x = 18,379.90 × 9,290.84
  4. Step 4: Simplify right side
    12,265.16x = 170,764,710.12
  5. Step 5: Solve for x
    x = 170,764,710.12/12,265.16
  6. Step 6: Final answer
    x = 13,922.75

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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.