Home / 13,293.36-18,349.44-8,261.40

Finding the Fourth Proportional to 13,293.36, 18,349.44 and 8,261.40

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Solution

The fourth proportional to 13,293.36, 18,349.44 and 8,261.40 is: 11,403.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,293.36 : 18,349.44 = 8,261.40 : x
  2. Step 2: Convert to fraction form
    13,293.36/18,349.44 = 8,261.40/x
  3. Step 3: Cross multiply
    13,293.36x = 18,349.44 × 8,261.40
  4. Step 4: Simplify right side
    13,293.36x = 151,592,063.62
  5. Step 5: Solve for x
    x = 151,592,063.62/13,293.36
  6. Step 6: Final answer
    x = 11,403.59

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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.