Home / 13,765.39-19,093.70-13,293.36

Finding the Fourth Proportional to 13,765.39, 19,093.70 and 13,293.36

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Solution

The fourth proportional to 13,765.39, 19,093.70 and 13,293.36 is: 18,438.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,765.39 : 19,093.70 = 13,293.36 : x
  2. Step 2: Convert to fraction form
    13,765.39/19,093.70 = 13,293.36/x
  3. Step 3: Cross multiply
    13,765.39x = 19,093.70 × 13,293.36
  4. Step 4: Simplify right side
    13,765.39x = 253,819,461.07
  5. Step 5: Solve for x
    x = 253,819,461.07/13,765.39
  6. Step 6: Final answer
    x = 18,438.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.