Home / 13,117.44-18,063.36-11,719.68

Finding the Fourth Proportional to 13,117.44, 18,063.36 and 11,719.68

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Solution

The fourth proportional to 13,117.44, 18,063.36 and 11,719.68 is: 16,138.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,117.44 : 18,063.36 = 11,719.68 : x
  2. Step 2: Convert to fraction form
    13,117.44/18,063.36 = 11,719.68/x
  3. Step 3: Cross multiply
    13,117.44x = 18,063.36 × 11,719.68
  4. Step 4: Simplify right side
    13,117.44x = 211,696,798.92
  5. Step 5: Solve for x
    x = 211,696,798.92/13,117.44
  6. Step 6: Final answer
    x = 16,138.58

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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.