Home / 12,223.15-16,868.18-7,976.93

Finding the Fourth Proportional to 12,223.15, 16,868.18 and 7,976.93

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Solution

The fourth proportional to 12,223.15, 16,868.18 and 7,976.93 is: 11,008.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,223.15 : 16,868.18 = 7,976.93 : x
  2. Step 2: Convert to fraction form
    12,223.15/16,868.18 = 7,976.93/x
  3. Step 3: Cross multiply
    12,223.15x = 16,868.18 × 7,976.93
  4. Step 4: Simplify right side
    12,223.15x = 134,556,226.69
  5. Step 5: Solve for x
    x = 134,556,226.69/12,223.15
  6. Step 6: Final answer
    x = 11,008.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.