Home / 14,975.63-20,659.69-8,684.36

Finding the Fourth Proportional to 14,975.63, 20,659.69 and 8,684.36

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Solution

The fourth proportional to 14,975.63, 20,659.69 and 8,684.36 is: 11,980.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,975.63 : 20,659.69 = 8,684.36 : x
  2. Step 2: Convert to fraction form
    14,975.63/20,659.69 = 8,684.36/x
  3. Step 3: Cross multiply
    14,975.63x = 20,659.69 × 8,684.36
  4. Step 4: Simplify right side
    14,975.63x = 179,416,185.45
  5. Step 5: Solve for x
    x = 179,416,185.45/14,975.63
  6. Step 6: Final answer
    x = 11,980.54

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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.