Home / 15,678.46-23,550.21-12,679.87

Finding the Fourth Proportional to 15,678.46, 23,550.21 and 12,679.87

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Solution

The fourth proportional to 15,678.46, 23,550.21 and 12,679.87 is: 19,046.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,678.46 : 23,550.21 = 12,679.87 : x
  2. Step 2: Convert to fraction form
    15,678.46/23,550.21 = 12,679.87/x
  3. Step 3: Cross multiply
    15,678.46x = 23,550.21 × 12,679.87
  4. Step 4: Simplify right side
    15,678.46x = 298,613,601.27
  5. Step 5: Solve for x
    x = 298,613,601.27/15,678.46
  6. Step 6: Final answer
    x = 19,046.11

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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.