Home / 8,619.21-11,893.10-5,426.95

Finding the Fourth Proportional to 8,619.21, 11,893.10 and 5,426.95

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Solution

The fourth proportional to 8,619.21, 11,893.10 and 5,426.95 is: 7,488.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,619.21 : 11,893.10 = 5,426.95 : x
  2. Step 2: Convert to fraction form
    8,619.21/11,893.10 = 5,426.95/x
  3. Step 3: Cross multiply
    8,619.21x = 11,893.10 × 5,426.95
  4. Step 4: Simplify right side
    8,619.21x = 64,543,270.27
  5. Step 5: Solve for x
    x = 64,543,270.27/8,619.21
  6. Step 6: Final answer
    x = 7,488.30

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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.