Home / 13,980.09-19,289.35-10,205.31

Finding the Fourth Proportional to 13,980.09, 19,289.35 and 10,205.31

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Solution

The fourth proportional to 13,980.09, 19,289.35 and 10,205.31 is: 14,081.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,980.09 : 19,289.35 = 10,205.31 : x
  2. Step 2: Convert to fraction form
    13,980.09/19,289.35 = 10,205.31/x
  3. Step 3: Cross multiply
    13,980.09x = 19,289.35 × 10,205.31
  4. Step 4: Simplify right side
    13,980.09x = 196,853,736.87
  5. Step 5: Solve for x
    x = 196,853,736.87/13,980.09
  6. Step 6: Final answer
    x = 14,081.01

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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.