Home / 8,078.04-12,107.70-5,446.08

Finding the Fourth Proportional to 8,078.04, 12,107.70 and 5,446.08

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Solution

The fourth proportional to 8,078.04, 12,107.70 and 5,446.08 is: 8,162.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,078.04 : 12,107.70 = 5,446.08 : x
  2. Step 2: Convert to fraction form
    8,078.04/12,107.70 = 5,446.08/x
  3. Step 3: Cross multiply
    8,078.04x = 12,107.70 × 5,446.08
  4. Step 4: Simplify right side
    8,078.04x = 65,939,502.82
  5. Step 5: Solve for x
    x = 65,939,502.82/8,078.04
  6. Step 6: Final answer
    x = 8,162.81

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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.