Home / 13,980.33-19,289.68-10,205.55

Finding the Fourth Proportional to 13,980.33, 19,289.68 and 10,205.55

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Solution

The fourth proportional to 13,980.33, 19,289.68 and 10,205.55 is: 14,081.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,980.33 : 19,289.68 = 10,205.55 : x
  2. Step 2: Convert to fraction form
    13,980.33/19,289.68 = 10,205.55/x
  3. Step 3: Cross multiply
    13,980.33x = 19,289.68 × 10,205.55
  4. Step 4: Simplify right side
    13,980.33x = 196,861,768.21
  5. Step 5: Solve for x
    x = 196,861,768.21/13,980.33
  6. Step 6: Final answer
    x = 14,081.34

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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.