Home / 8,762.38-13,143.57-2,919.44

Finding the Fourth Proportional to 8,762.38, 13,143.57 and 2,919.44

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Solution

The fourth proportional to 8,762.38, 13,143.57 and 2,919.44 is: 4,379.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,762.38 : 13,143.57 = 2,919.44 : x
  2. Step 2: Convert to fraction form
    8,762.38/13,143.57 = 2,919.44/x
  3. Step 3: Cross multiply
    8,762.38x = 13,143.57 × 2,919.44
  4. Step 4: Simplify right side
    8,762.38x = 38,371,864.00
  5. Step 5: Solve for x
    x = 38,371,864.00/8,762.38
  6. Step 6: Final answer
    x = 4,379.16

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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.