Home / 13,120.80-19,673.97-8,965.50

Finding the Fourth Proportional to 13,120.80, 19,673.97 and 8,965.50

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Solution

The fourth proportional to 13,120.80, 19,673.97 and 8,965.50 is: 13,443.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,120.80 : 19,673.97 = 8,965.50 : x
  2. Step 2: Convert to fraction form
    13,120.80/19,673.97 = 8,965.50/x
  3. Step 3: Cross multiply
    13,120.80x = 19,673.97 × 8,965.50
  4. Step 4: Simplify right side
    13,120.80x = 176,386,978.04
  5. Step 5: Solve for x
    x = 176,386,978.04/13,120.80
  6. Step 6: Final answer
    x = 13,443.31

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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.