Home / 13,128.28-19,692.86-4,362.92

Finding the Fourth Proportional to 13,128.28, 19,692.86 and 4,362.92

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Solution

The fourth proportional to 13,128.28, 19,692.86 and 4,362.92 is: 6,544.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,128.28 : 19,692.86 = 4,362.92 : x
  2. Step 2: Convert to fraction form
    13,128.28/19,692.86 = 4,362.92/x
  3. Step 3: Cross multiply
    13,128.28x = 19,692.86 × 4,362.92
  4. Step 4: Simplify right side
    13,128.28x = 85,918,372.75
  5. Step 5: Solve for x
    x = 85,918,372.75/13,128.28
  6. Step 6: Final answer
    x = 6,544.53

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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.