Home / 13,112.70-19,666.27-4,228.85

Finding the Fourth Proportional to 13,112.70, 19,666.27 and 4,228.85

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Solution

The fourth proportional to 13,112.70, 19,666.27 and 4,228.85 is: 6,342.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,112.70 : 19,666.27 = 4,228.85 : x
  2. Step 2: Convert to fraction form
    13,112.70/19,666.27 = 4,228.85/x
  3. Step 3: Cross multiply
    13,112.70x = 19,666.27 × 4,228.85
  4. Step 4: Simplify right side
    13,112.70x = 83,165,705.89
  5. Step 5: Solve for x
    x = 83,165,705.89/13,112.70
  6. Step 6: Final answer
    x = 6,342.38

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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.