Home / 8,320.78-12,476.31-5,692.33

Finding the Fourth Proportional to 8,320.78, 12,476.31 and 5,692.33

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Solution

The fourth proportional to 8,320.78, 12,476.31 and 5,692.33 is: 8,535.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320.78 : 12,476.31 = 5,692.33 : x
  2. Step 2: Convert to fraction form
    8,320.78/12,476.31 = 5,692.33/x
  3. Step 3: Cross multiply
    8,320.78x = 12,476.31 × 5,692.33
  4. Step 4: Simplify right side
    8,320.78x = 71,019,273.70
  5. Step 5: Solve for x
    x = 71,019,273.70/8,320.78
  6. Step 6: Final answer
    x = 8,535.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.