Home / 13,583.36-20,380.88-7,347.75

Finding the Fourth Proportional to 13,583.36, 20,380.88 and 7,347.75

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Solution

The fourth proportional to 13,583.36, 20,380.88 and 7,347.75 is: 11,024.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,583.36 : 20,380.88 = 7,347.75 : x
  2. Step 2: Convert to fraction form
    13,583.36/20,380.88 = 7,347.75/x
  3. Step 3: Cross multiply
    13,583.36x = 20,380.88 × 7,347.75
  4. Step 4: Simplify right side
    13,583.36x = 149,753,574.28
  5. Step 5: Solve for x
    x = 149,753,574.28/13,583.36
  6. Step 6: Final answer
    x = 11,024.79

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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.