Home / 13,693.32-18,879.66-11,427.92

Finding the Fourth Proportional to 13,693.32, 18,879.66 and 11,427.92

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Solution

The fourth proportional to 13,693.32, 18,879.66 and 11,427.92 is: 15,756.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,693.32 : 18,879.66 = 11,427.92 : x
  2. Step 2: Convert to fraction form
    13,693.32/18,879.66 = 11,427.92/x
  3. Step 3: Cross multiply
    13,693.32x = 18,879.66 × 11,427.92
  4. Step 4: Simplify right side
    13,693.32x = 215,755,319.88
  5. Step 5: Solve for x
    x = 215,755,319.88/13,693.32
  6. Step 6: Final answer
    x = 15,756.24

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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.