Home / 13,583.52-18,747.36-7,617.60

Finding the Fourth Proportional to 13,583.52, 18,747.36 and 7,617.60

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Solution

The fourth proportional to 13,583.52, 18,747.36 and 7,617.60 is: 10,513.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,583.52 : 18,747.36 = 7,617.60 : x
  2. Step 2: Convert to fraction form
    13,583.52/18,747.36 = 7,617.60/x
  3. Step 3: Cross multiply
    13,583.52x = 18,747.36 × 7,617.60
  4. Step 4: Simplify right side
    13,583.52x = 142,809,889.54
  5. Step 5: Solve for x
    x = 142,809,889.54/13,583.52
  6. Step 6: Final answer
    x = 10,513.47

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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.