Home / 13,997.06-19,315.86-7,709.44

Finding the Fourth Proportional to 13,997.06, 19,315.86 and 7,709.44

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Solution

The fourth proportional to 13,997.06, 19,315.86 and 7,709.44 is: 10,638.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,997.06 : 19,315.86 = 7,709.44 : x
  2. Step 2: Convert to fraction form
    13,997.06/19,315.86 = 7,709.44/x
  3. Step 3: Cross multiply
    13,997.06x = 19,315.86 × 7,709.44
  4. Step 4: Simplify right side
    13,997.06x = 148,914,463.72
  5. Step 5: Solve for x
    x = 148,914,463.72/13,997.06
  6. Step 6: Final answer
    x = 10,638.98

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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.