Home / 12,847.75-17,730.01-7,542.65

Finding the Fourth Proportional to 12,847.75, 17,730.01 and 7,542.65

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Solution

The fourth proportional to 12,847.75, 17,730.01 and 7,542.65 is: 10,408.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,847.75 : 17,730.01 = 7,542.65 : x
  2. Step 2: Convert to fraction form
    12,847.75/17,730.01 = 7,542.65/x
  3. Step 3: Cross multiply
    12,847.75x = 17,730.01 × 7,542.65
  4. Step 4: Simplify right side
    12,847.75x = 133,731,259.93
  5. Step 5: Solve for x
    x = 133,731,259.93/12,847.75
  6. Step 6: Final answer
    x = 10,408.93

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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.