Home / 10,986.60-15,161.15-6,206.72

Finding the Fourth Proportional to 10,986.60, 15,161.15 and 6,206.72

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Solution

The fourth proportional to 10,986.60, 15,161.15 and 6,206.72 is: 8,565.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,986.60 : 15,161.15 = 6,206.72 : x
  2. Step 2: Convert to fraction form
    10,986.60/15,161.15 = 6,206.72/x
  3. Step 3: Cross multiply
    10,986.60x = 15,161.15 × 6,206.72
  4. Step 4: Simplify right side
    10,986.60x = 94,100,906.09
  5. Step 5: Solve for x
    x = 94,100,906.09/10,986.60
  6. Step 6: Final answer
    x = 8,565.06

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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.