Home / 14,480.37-19,972.61-13,289.21

Finding the Fourth Proportional to 14,480.37, 19,972.61 and 13,289.21

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Solution

The fourth proportional to 14,480.37, 19,972.61 and 13,289.21 is: 18,329.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,480.37 : 19,972.61 = 13,289.21 : x
  2. Step 2: Convert to fraction form
    14,480.37/19,972.61 = 13,289.21/x
  3. Step 3: Cross multiply
    14,480.37x = 19,972.61 × 13,289.21
  4. Step 4: Simplify right side
    14,480.37x = 265,420,042.23
  5. Step 5: Solve for x
    x = 265,420,042.23/14,480.37
  6. Step 6: Final answer
    x = 18,329.65

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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.