Home / 10,886.36-15,022.01-6,409.85

Finding the Fourth Proportional to 10,886.36, 15,022.01 and 6,409.85

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Solution

The fourth proportional to 10,886.36, 15,022.01 and 6,409.85 is: 8,844.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,886.36 : 15,022.01 = 6,409.85 : x
  2. Step 2: Convert to fraction form
    10,886.36/15,022.01 = 6,409.85/x
  3. Step 3: Cross multiply
    10,886.36x = 15,022.01 × 6,409.85
  4. Step 4: Simplify right side
    10,886.36x = 96,288,723.64
  5. Step 5: Solve for x
    x = 96,288,723.64/10,886.36
  6. Step 6: Final answer
    x = 8,844.90

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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.