Home / 14,135.82-21,202.81-5,370.50

Finding the Fourth Proportional to 14,135.82, 21,202.81 and 5,370.50

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Solution

The fourth proportional to 14,135.82, 21,202.81 and 5,370.50 is: 8,055.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,135.82 : 21,202.81 = 5,370.50 : x
  2. Step 2: Convert to fraction form
    14,135.82/21,202.81 = 5,370.50/x
  3. Step 3: Cross multiply
    14,135.82x = 21,202.81 × 5,370.50
  4. Step 4: Simplify right side
    14,135.82x = 113,869,760.89
  5. Step 5: Solve for x
    x = 113,869,760.89/14,135.82
  6. Step 6: Final answer
    x = 8,055.41

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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.