Home / 7,347.03-10,138.97-3,989.87

Finding the Fourth Proportional to 7,347.03, 10,138.97 and 3,989.87

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Solution

The fourth proportional to 7,347.03, 10,138.97 and 3,989.87 is: 5,506.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,347.03 : 10,138.97 = 3,989.87 : x
  2. Step 2: Convert to fraction form
    7,347.03/10,138.97 = 3,989.87/x
  3. Step 3: Cross multiply
    7,347.03x = 10,138.97 × 3,989.87
  4. Step 4: Simplify right side
    7,347.03x = 40,453,172.23
  5. Step 5: Solve for x
    x = 40,453,172.23/7,347.03
  6. Step 6: Final answer
    x = 5,506.06

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1.5x scale

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.