Home / 10,936.48-16,390.87-6,986.22

Finding the Fourth Proportional to 10,936.48, 16,390.87 and 6,986.22

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Solution

The fourth proportional to 10,936.48, 16,390.87 and 6,986.22 is: 10,470.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,936.48 : 16,390.87 = 6,986.22 : x
  2. Step 2: Convert to fraction form
    10,936.48/16,390.87 = 6,986.22/x
  3. Step 3: Cross multiply
    10,936.48x = 16,390.87 × 6,986.22
  4. Step 4: Simplify right side
    10,936.48x = 114,510,223.81
  5. Step 5: Solve for x
    x = 114,510,223.81/10,936.48
  6. Step 6: Final answer
    x = 10,470.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.