Home / 9,638.94-13,301.64-6,105.05

Finding the Fourth Proportional to 9,638.94, 13,301.64 and 6,105.05

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Solution

The fourth proportional to 9,638.94, 13,301.64 and 6,105.05 is: 8,424.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,638.94 : 13,301.64 = 6,105.05 : x
  2. Step 2: Convert to fraction form
    9,638.94/13,301.64 = 6,105.05/x
  3. Step 3: Cross multiply
    9,638.94x = 13,301.64 × 6,105.05
  4. Step 4: Simplify right side
    9,638.94x = 81,207,110.77
  5. Step 5: Solve for x
    x = 81,207,110.77/9,638.94
  6. Step 6: Final answer
    x = 8,424.90

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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.