Home / 10,986.71-15,161.28-6,270.80

Finding the Fourth Proportional to 10,986.71, 15,161.28 and 6,270.80

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Solution

The fourth proportional to 10,986.71, 15,161.28 and 6,270.80 is: 8,653.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,986.71 : 15,161.28 = 6,270.80 : x
  2. Step 2: Convert to fraction form
    10,986.71/15,161.28 = 6,270.80/x
  3. Step 3: Cross multiply
    10,986.71x = 15,161.28 × 6,270.80
  4. Step 4: Simplify right side
    10,986.71x = 95,073,354.62
  5. Step 5: Solve for x
    x = 95,073,354.62/10,986.71
  6. Step 6: Final answer
    x = 8,653.49

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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.