Home / 13,998.92-19,317.22-7,709.80

Finding the Fourth Proportional to 13,998.92, 19,317.22 and 7,709.80

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Solution

The fourth proportional to 13,998.92, 19,317.22 and 7,709.80 is: 10,638.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,998.92 : 19,317.22 = 7,709.80 : x
  2. Step 2: Convert to fraction form
    13,998.92/19,317.22 = 7,709.80/x
  3. Step 3: Cross multiply
    13,998.92x = 19,317.22 × 7,709.80
  4. Step 4: Simplify right side
    13,998.92x = 148,931,902.76
  5. Step 5: Solve for x
    x = 148,931,902.76/13,998.92
  6. Step 6: Final answer
    x = 10,638.81

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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.