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Finding the Fourth Proportional to 8,364.71, 11,528.28 and 6,867.83

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Solution

The fourth proportional to 8,364.71, 11,528.28 and 6,867.83 is: 9,465.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,364.71 : 11,528.28 = 6,867.83 : x
  2. Step 2: Convert to fraction form
    8,364.71/11,528.28 = 6,867.83/x
  3. Step 3: Cross multiply
    8,364.71x = 11,528.28 × 6,867.83
  4. Step 4: Simplify right side
    8,364.71x = 79,174,209.59
  5. Step 5: Solve for x
    x = 79,174,209.59/8,364.71
  6. Step 6: Final answer
    x = 9,465.27

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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.