Home / 12,077.81-18,108.23-5,320.19

Finding the Fourth Proportional to 12,077.81, 18,108.23 and 5,320.19

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Solution

The fourth proportional to 12,077.81, 18,108.23 and 5,320.19 is: 7,976.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,077.81 : 18,108.23 = 5,320.19 : x
  2. Step 2: Convert to fraction form
    12,077.81/18,108.23 = 5,320.19/x
  3. Step 3: Cross multiply
    12,077.81x = 18,108.23 × 5,320.19
  4. Step 4: Simplify right side
    12,077.81x = 96,339,174.93
  5. Step 5: Solve for x
    x = 96,339,174.93/12,077.81
  6. Step 6: Final answer
    x = 7,976.54

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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.