Home / 8,490.04-11,692.03-6,128.44

Finding the Fourth Proportional to 8,490.04, 11,692.03 and 6,128.44

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Solution

The fourth proportional to 8,490.04, 11,692.03 and 6,128.44 is: 8,439.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,490.04 : 11,692.03 = 6,128.44 : x
  2. Step 2: Convert to fraction form
    8,490.04/11,692.03 = 6,128.44/x
  3. Step 3: Cross multiply
    8,490.04x = 11,692.03 × 6,128.44
  4. Step 4: Simplify right side
    8,490.04x = 71,653,904.33
  5. Step 5: Solve for x
    x = 71,653,904.33/8,490.04
  6. Step 6: Final answer
    x = 8,439.76

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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.