Home / 14,971.56-20,661.84-8,684.52

Finding the Fourth Proportional to 14,971.56, 20,661.84 and 8,684.52

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Solution

The fourth proportional to 14,971.56, 20,661.84 and 8,684.52 is: 11,985.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,971.56 : 20,661.84 = 8,684.52 : x
  2. Step 2: Convert to fraction form
    14,971.56/20,661.84 = 8,684.52/x
  3. Step 3: Cross multiply
    14,971.56x = 20,661.84 × 8,684.52
  4. Step 4: Simplify right side
    14,971.56x = 179,438,162.72
  5. Step 5: Solve for x
    x = 179,438,162.72/14,971.56
  6. Step 6: Final answer
    x = 11,985.27

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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.