Home / 13,188.56-19,782.84-11,228.24

Finding the Fourth Proportional to 13,188.56, 19,782.84 and 11,228.24

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Solution

The fourth proportional to 13,188.56, 19,782.84 and 11,228.24 is: 16,842.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,188.56 : 19,782.84 = 11,228.24 : x
  2. Step 2: Convert to fraction form
    13,188.56/19,782.84 = 11,228.24/x
  3. Step 3: Cross multiply
    13,188.56x = 19,782.84 × 11,228.24
  4. Step 4: Simplify right side
    13,188.56x = 222,126,475.40
  5. Step 5: Solve for x
    x = 222,126,475.40/13,188.56
  6. Step 6: Final answer
    x = 16,842.36

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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.