Home / 13,923.58-20,886.34-5,603.67

Finding the Fourth Proportional to 13,923.58, 20,886.34 and 5,603.67

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Solution

The fourth proportional to 13,923.58, 20,886.34 and 5,603.67 is: 8,405.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,923.58 : 20,886.34 = 5,603.67 : x
  2. Step 2: Convert to fraction form
    13,923.58/20,886.34 = 5,603.67/x
  3. Step 3: Cross multiply
    13,923.58x = 20,886.34 × 5,603.67
  4. Step 4: Simplify right side
    13,923.58x = 117,040,156.87
  5. Step 5: Solve for x
    x = 117,040,156.87/13,923.58
  6. Step 6: Final answer
    x = 8,405.90

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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.