Home / 8,964.41-12,369.87-4,985.28

Finding the Fourth Proportional to 8,964.41, 12,369.87 and 4,985.28

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Solution

The fourth proportional to 8,964.41, 12,369.87 and 4,985.28 is: 6,879.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,964.41 : 12,369.87 = 4,985.28 : x
  2. Step 2: Convert to fraction form
    8,964.41/12,369.87 = 4,985.28/x
  3. Step 3: Cross multiply
    8,964.41x = 12,369.87 × 4,985.28
  4. Step 4: Simplify right side
    8,964.41x = 61,667,265.51
  5. Step 5: Solve for x
    x = 61,667,265.51/8,964.41
  6. Step 6: Final answer
    x = 6,879.12

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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.