Home / 14,976.63-20,661.07-8,685.36

Finding the Fourth Proportional to 14,976.63, 20,661.07 and 8,685.36

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Solution

The fourth proportional to 14,976.63, 20,661.07 and 8,685.36 is: 11,981.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,976.63 : 20,661.07 = 8,685.36 : x
  2. Step 2: Convert to fraction form
    14,976.63/20,661.07 = 8,685.36/x
  3. Step 3: Cross multiply
    14,976.63x = 20,661.07 × 8,685.36
  4. Step 4: Simplify right side
    14,976.63x = 179,448,830.94
  5. Step 5: Solve for x
    x = 179,448,830.94/14,976.63
  6. Step 6: Final answer
    x = 11,981.92

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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.