Home / 12,400.22-17,108.14-7,021.93

Finding the Fourth Proportional to 12,400.22, 17,108.14 and 7,021.93

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Solution

The fourth proportional to 12,400.22, 17,108.14 and 7,021.93 is: 9,687.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,400.22 : 17,108.14 = 7,021.93 : x
  2. Step 2: Convert to fraction form
    12,400.22/17,108.14 = 7,021.93/x
  3. Step 3: Cross multiply
    12,400.22x = 17,108.14 × 7,021.93
  4. Step 4: Simplify right side
    12,400.22x = 120,132,161.51
  5. Step 5: Solve for x
    x = 120,132,161.51/12,400.22
  6. Step 6: Final answer
    x = 9,687.91

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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.