Home / 13,184.55-19,765.34-5,388.39

Finding the Fourth Proportional to 13,184.55, 19,765.34 and 5,388.39

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Solution

The fourth proportional to 13,184.55, 19,765.34 and 5,388.39 is: 8,077.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,184.55 : 19,765.34 = 5,388.39 : x
  2. Step 2: Convert to fraction form
    13,184.55/19,765.34 = 5,388.39/x
  3. Step 3: Cross multiply
    13,184.55x = 19,765.34 × 5,388.39
  4. Step 4: Simplify right side
    13,184.55x = 106,503,360.40
  5. Step 5: Solve for x
    x = 106,503,360.40/13,184.55
  6. Step 6: Final answer
    x = 8,077.89

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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.