Home / 7,328.47-10,113.27-3,971.37

Finding the Fourth Proportional to 7,328.47, 10,113.27 and 3,971.37

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Solution

The fourth proportional to 7,328.47, 10,113.27 and 3,971.37 is: 5,480.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,328.47 : 10,113.27 = 3,971.37 : x
  2. Step 2: Convert to fraction form
    7,328.47/10,113.27 = 3,971.37/x
  3. Step 3: Cross multiply
    7,328.47x = 10,113.27 × 3,971.37
  4. Step 4: Simplify right side
    7,328.47x = 40,163,537.08
  5. Step 5: Solve for x
    x = 40,163,537.08/7,328.47
  6. Step 6: Final answer
    x = 5,480.48

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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.