Home / 12,379.16-17,083.58-7,074.84

Finding the Fourth Proportional to 12,379.16, 17,083.58 and 7,074.84

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Solution

The fourth proportional to 12,379.16, 17,083.58 and 7,074.84 is: 9,763.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,379.16 : 17,083.58 = 7,074.84 : x
  2. Step 2: Convert to fraction form
    12,379.16/17,083.58 = 7,074.84/x
  3. Step 3: Cross multiply
    12,379.16x = 17,083.58 × 7,074.84
  4. Step 4: Simplify right side
    12,379.16x = 120,863,595.13
  5. Step 5: Solve for x
    x = 120,863,595.13/12,379.16
  6. Step 6: Final answer
    x = 9,763.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.