Home / 10,886.36-15,025.64-6,638.85

Finding the Fourth Proportional to 10,886.36, 15,025.64 and 6,638.85

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Solution

The fourth proportional to 10,886.36, 15,025.64 and 6,638.85 is: 9,163.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,886.36 : 15,025.64 = 6,638.85 : x
  2. Step 2: Convert to fraction form
    10,886.36/15,025.64 = 6,638.85/x
  3. Step 3: Cross multiply
    10,886.36x = 15,025.64 × 6,638.85
  4. Step 4: Simplify right side
    10,886.36x = 99,752,936.92
  5. Step 5: Solve for x
    x = 99,752,936.92/10,886.36
  6. Step 6: Final answer
    x = 9,163.12

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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.