Home / 9,321-13,976.94-4,386.48

Finding the Fourth Proportional to 9,321, 13,976.94 and 4,386.48

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Solution

The fourth proportional to 9,321, 13,976.94 and 4,386.48 is: 6,577.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,321 : 13,976.94 = 4,386.48 : x
  2. Step 2: Convert to fraction form
    9,321/13,976.94 = 4,386.48/x
  3. Step 3: Cross multiply
    9,321x = 13,976.94 × 4,386.48
  4. Step 4: Simplify right side
    9,321x = 61,309,567.77
  5. Step 5: Solve for x
    x = 61,309,567.77/9,321
  6. Step 6: Final answer
    x = 6,577.57

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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.