Home / 13,479.21-20,188.73-10,336.07

Finding the Fourth Proportional to 13,479.21, 20,188.73 and 10,336.07

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Solution

The fourth proportional to 13,479.21, 20,188.73 and 10,336.07 is: 15,481.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479.21 : 20,188.73 = 10,336.07 : x
  2. Step 2: Convert to fraction form
    13,479.21/20,188.73 = 10,336.07/x
  3. Step 3: Cross multiply
    13,479.21x = 20,188.73 × 10,336.07
  4. Step 4: Simplify right side
    13,479.21x = 208,671,973.87
  5. Step 5: Solve for x
    x = 208,671,973.87/13,479.21
  6. Step 6: Final answer
    x = 15,481.02

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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.