Home / 13,997.38-19,316.34-7,709.74

Finding the Fourth Proportional to 13,997.38, 19,316.34 and 7,709.74

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Solution

The fourth proportional to 13,997.38, 19,316.34 and 7,709.74 is: 10,639.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,997.38 : 19,316.34 = 7,709.74 : x
  2. Step 2: Convert to fraction form
    13,997.38/19,316.34 = 7,709.74/x
  3. Step 3: Cross multiply
    13,997.38x = 19,316.34 × 7,709.74
  4. Step 4: Simplify right side
    13,997.38x = 148,923,959.15
  5. Step 5: Solve for x
    x = 148,923,959.15/13,997.38
  6. Step 6: Final answer
    x = 10,639.42

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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.