Home / 10,086.40-13,911.04-8,683.52

Finding the Fourth Proportional to 10,086.40, 13,911.04 and 8,683.52

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Solution

The fourth proportional to 10,086.40, 13,911.04 and 8,683.52 is: 11,976.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,086.40 : 13,911.04 = 8,683.52 : x
  2. Step 2: Convert to fraction form
    10,086.40/13,911.04 = 8,683.52/x
  3. Step 3: Cross multiply
    10,086.40x = 13,911.04 × 8,683.52
  4. Step 4: Simplify right side
    10,086.40x = 120,796,794.06
  5. Step 5: Solve for x
    x = 120,796,794.06/10,086.40
  6. Step 6: Final answer
    x = 11,976.20

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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.