Home / 13,188.61-19,782.92-6,261.49

Finding the Fourth Proportional to 13,188.61, 19,782.92 and 6,261.49

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Solution

The fourth proportional to 13,188.61, 19,782.92 and 6,261.49 is: 9,392.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,188.61 : 19,782.92 = 6,261.49 : x
  2. Step 2: Convert to fraction form
    13,188.61/19,782.92 = 6,261.49/x
  3. Step 3: Cross multiply
    13,188.61x = 19,782.92 × 6,261.49
  4. Step 4: Simplify right side
    13,188.61x = 123,870,555.75
  5. Step 5: Solve for x
    x = 123,870,555.75/13,188.61
  6. Step 6: Final answer
    x = 9,392.24

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Similar ratio
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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.