Home / 9,120.57-13,678.87-2,456.91

Finding the Fourth Proportional to 9,120.57, 13,678.87 and 2,456.91

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Solution

The fourth proportional to 9,120.57, 13,678.87 and 2,456.91 is: 3,684.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,120.57 : 13,678.87 = 2,456.91 : x
  2. Step 2: Convert to fraction form
    9,120.57/13,678.87 = 2,456.91/x
  3. Step 3: Cross multiply
    9,120.57x = 13,678.87 × 2,456.91
  4. Step 4: Simplify right side
    9,120.57x = 33,607,752.49
  5. Step 5: Solve for x
    x = 33,607,752.49/9,120.57
  6. Step 6: Final answer
    x = 3,684.83

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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.