Home / 9,343.80-13,986.90-5,436.60

Finding the Fourth Proportional to 9,343.80, 13,986.90 and 5,436.60

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Solution

The fourth proportional to 9,343.80, 13,986.90 and 5,436.60 is: 8,138.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,343.80 : 13,986.90 = 5,436.60 : x
  2. Step 2: Convert to fraction form
    9,343.80/13,986.90 = 5,436.60/x
  3. Step 3: Cross multiply
    9,343.80x = 13,986.90 × 5,436.60
  4. Step 4: Simplify right side
    9,343.80x = 76,041,180.54
  5. Step 5: Solve for x
    x = 76,041,180.54/9,343.80
  6. Step 6: Final answer
    x = 8,138.14

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1.5x scale

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.