Home / 8,958.35-12,362.63-4,979.36

Finding the Fourth Proportional to 8,958.35, 12,362.63 and 4,979.36

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Solution

The fourth proportional to 8,958.35, 12,362.63 and 4,979.36 is: 6,871.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,958.35 : 12,362.63 = 4,979.36 : x
  2. Step 2: Convert to fraction form
    8,958.35/12,362.63 = 4,979.36/x
  3. Step 3: Cross multiply
    8,958.35x = 12,362.63 × 4,979.36
  4. Step 4: Simplify right side
    8,958.35x = 61,557,898.61
  5. Step 5: Solve for x
    x = 61,557,898.61/8,958.35
  6. Step 6: Final answer
    x = 6,871.57

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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.