Home / 13,238.39-19,852.70-5,447.81

Finding the Fourth Proportional to 13,238.39, 19,852.70 and 5,447.81

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Solution

The fourth proportional to 13,238.39, 19,852.70 and 5,447.81 is: 8,169.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,238.39 : 19,852.70 = 5,447.81 : x
  2. Step 2: Convert to fraction form
    13,238.39/19,852.70 = 5,447.81/x
  3. Step 3: Cross multiply
    13,238.39x = 19,852.70 × 5,447.81
  4. Step 4: Simplify right side
    13,238.39x = 108,153,611.08
  5. Step 5: Solve for x
    x = 108,153,611.08/13,238.39
  6. Step 6: Final answer
    x = 8,169.70

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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.