Home / 13,212.67-19,820.73-6,972.94

Finding the Fourth Proportional to 13,212.67, 19,820.73 and 6,972.94

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Solution

The fourth proportional to 13,212.67, 19,820.73 and 6,972.94 is: 10,460.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,212.67 : 19,820.73 = 6,972.94 : x
  2. Step 2: Convert to fraction form
    13,212.67/19,820.73 = 6,972.94/x
  3. Step 3: Cross multiply
    13,212.67x = 19,820.73 × 6,972.94
  4. Step 4: Simplify right side
    13,212.67x = 138,208,761.05
  5. Step 5: Solve for x
    x = 138,208,761.05/13,212.67
  6. Step 6: Final answer
    x = 10,460.32

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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.