Home / 11,920.70-16,445.43-7,202.25

Finding the Fourth Proportional to 11,920.70, 16,445.43 and 7,202.25

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Solution

The fourth proportional to 11,920.70, 16,445.43 and 7,202.25 is: 9,936.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,920.70 : 16,445.43 = 7,202.25 : x
  2. Step 2: Convert to fraction form
    11,920.70/16,445.43 = 7,202.25/x
  3. Step 3: Cross multiply
    11,920.70x = 16,445.43 × 7,202.25
  4. Step 4: Simplify right side
    11,920.70x = 118,444,098.22
  5. Step 5: Solve for x
    x = 118,444,098.22/11,920.70
  6. Step 6: Final answer
    x = 9,936.00

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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.