Home / 8,368.45-11,533.46-6,871.57

Finding the Fourth Proportional to 8,368.45, 11,533.46 and 6,871.57

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Solution

The fourth proportional to 8,368.45, 11,533.46 and 6,871.57 is: 9,470.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,368.45 : 11,533.46 = 6,871.57 : x
  2. Step 2: Convert to fraction form
    8,368.45/11,533.46 = 6,871.57/x
  3. Step 3: Cross multiply
    8,368.45x = 11,533.46 × 6,871.57
  4. Step 4: Simplify right side
    8,368.45x = 79,252,914.54
  5. Step 5: Solve for x
    x = 79,252,914.54/8,368.45
  6. Step 6: Final answer
    x = 9,470.44

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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.