Home / 14,971.32-20,667.42-8,682.48

Finding the Fourth Proportional to 14,971.32, 20,667.42 and 8,682.48

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Solution

The fourth proportional to 14,971.32, 20,667.42 and 8,682.48 is: 11,985.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,971.32 : 20,667.42 = 8,682.48 : x
  2. Step 2: Convert to fraction form
    14,971.32/20,667.42 = 8,682.48/x
  3. Step 3: Cross multiply
    14,971.32x = 20,667.42 × 8,682.48
  4. Step 4: Simplify right side
    14,971.32x = 179,444,460.80
  5. Step 5: Solve for x
    x = 179,444,460.80/14,971.32
  6. Step 6: Final answer
    x = 11,985.88

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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.