Home / 13,189.58-18,201.84-8,153.67

Finding the Fourth Proportional to 13,189.58, 18,201.84 and 8,153.67

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Solution

The fourth proportional to 13,189.58, 18,201.84 and 8,153.67 is: 11,252.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,189.58 : 18,201.84 = 8,153.67 : x
  2. Step 2: Convert to fraction form
    13,189.58/18,201.84 = 8,153.67/x
  3. Step 3: Cross multiply
    13,189.58x = 18,201.84 × 8,153.67
  4. Step 4: Simplify right side
    13,189.58x = 148,411,796.75
  5. Step 5: Solve for x
    x = 148,411,796.75/13,189.58
  6. Step 6: Final answer
    x = 11,252.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.