Home / 13,607.92-20,358.83-11,928.72

Finding the Fourth Proportional to 13,607.92, 20,358.83 and 11,928.72

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Solution

The fourth proportional to 13,607.92, 20,358.83 and 11,928.72 is: 17,846.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,607.92 : 20,358.83 = 11,928.72 : x
  2. Step 2: Convert to fraction form
    13,607.92/20,358.83 = 11,928.72/x
  3. Step 3: Cross multiply
    13,607.92x = 20,358.83 × 11,928.72
  4. Step 4: Simplify right side
    13,607.92x = 242,854,795.22
  5. Step 5: Solve for x
    x = 242,854,795.22/13,607.92
  6. Step 6: Final answer
    x = 17,846.57

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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.