Home / 8,654.35-12,973.73-3,106.39

Finding the Fourth Proportional to 8,654.35, 12,973.73 and 3,106.39

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Solution

The fourth proportional to 8,654.35, 12,973.73 and 3,106.39 is: 4,656.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,654.35 : 12,973.73 = 3,106.39 : x
  2. Step 2: Convert to fraction form
    8,654.35/12,973.73 = 3,106.39/x
  3. Step 3: Cross multiply
    8,654.35x = 12,973.73 × 3,106.39
  4. Step 4: Simplify right side
    8,654.35x = 40,301,465.13
  5. Step 5: Solve for x
    x = 40,301,465.13/8,654.35
  6. Step 6: Final answer
    x = 4,656.79

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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.