Home / 13,466.40-20,189.88-5,670.96

Finding the Fourth Proportional to 13,466.40, 20,189.88 and 5,670.96

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Solution

The fourth proportional to 13,466.40, 20,189.88 and 5,670.96 is: 8,502.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,466.40 : 20,189.88 = 5,670.96 : x
  2. Step 2: Convert to fraction form
    13,466.40/20,189.88 = 5,670.96/x
  3. Step 3: Cross multiply
    13,466.40x = 20,189.88 × 5,670.96
  4. Step 4: Simplify right side
    13,466.40x = 114,496,001.88
  5. Step 5: Solve for x
    x = 114,496,001.88/13,466.40
  6. Step 6: Final answer
    x = 8,502.35

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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.