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Finding the Fourth Proportional to 8,656.99, 12,975.24 and 3,973.06

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Solution

The fourth proportional to 8,656.99, 12,975.24 and 3,973.06 is: 5,954.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,656.99 : 12,975.24 = 3,973.06 : x
  2. Step 2: Convert to fraction form
    8,656.99/12,975.24 = 3,973.06/x
  3. Step 3: Cross multiply
    8,656.99x = 12,975.24 × 3,973.06
  4. Step 4: Simplify right side
    8,656.99x = 51,551,322.29
  5. Step 5: Solve for x
    x = 51,551,322.29/8,656.99
  6. Step 6: Final answer
    x = 5,954.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.