Home / 13,607.75-20,412.91-5,288.41

Finding the Fourth Proportional to 13,607.75, 20,412.91 and 5,288.41

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Solution

The fourth proportional to 13,607.75, 20,412.91 and 5,288.41 is: 7,933.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,607.75 : 20,412.91 = 5,288.41 : x
  2. Step 2: Convert to fraction form
    13,607.75/20,412.91 = 5,288.41/x
  3. Step 3: Cross multiply
    13,607.75x = 20,412.91 × 5,288.41
  4. Step 4: Simplify right side
    13,607.75x = 107,951,806.17
  5. Step 5: Solve for x
    x = 107,951,806.17/13,607.75
  6. Step 6: Final answer
    x = 7,933.11

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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.