Home / 9,143.01-13,634.60-8,135.01

Finding the Fourth Proportional to 9,143.01, 13,634.60 and 8,135.01

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Solution

The fourth proportional to 9,143.01, 13,634.60 and 8,135.01 is: 12,131.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,143.01 : 13,634.60 = 8,135.01 : x
  2. Step 2: Convert to fraction form
    9,143.01/13,634.60 = 8,135.01/x
  3. Step 3: Cross multiply
    9,143.01x = 13,634.60 × 8,135.01
  4. Step 4: Simplify right side
    9,143.01x = 110,917,566.67
  5. Step 5: Solve for x
    x = 110,917,566.67/9,143.01
  6. Step 6: Final answer
    x = 12,131.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.