Home / 8,730.66-12,042.12-5,745.54

Finding the Fourth Proportional to 8,730.66, 12,042.12 and 5,745.54

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Solution

The fourth proportional to 8,730.66, 12,042.12 and 5,745.54 is: 7,924.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,730.66 : 12,042.12 = 5,745.54 : x
  2. Step 2: Convert to fraction form
    8,730.66/12,042.12 = 5,745.54/x
  3. Step 3: Cross multiply
    8,730.66x = 12,042.12 × 5,745.54
  4. Step 4: Simplify right side
    8,730.66x = 69,188,482.14
  5. Step 5: Solve for x
    x = 69,188,482.14/8,730.66
  6. Step 6: Final answer
    x = 7,924.77

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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.