Home / 13,583.58-18,745.71-7,615.14

Finding the Fourth Proportional to 13,583.58, 18,745.71 and 7,615.14

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Solution

The fourth proportional to 13,583.58, 18,745.71 and 7,615.14 is: 10,509.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,583.58 : 18,745.71 = 7,615.14 : x
  2. Step 2: Convert to fraction form
    13,583.58/18,745.71 = 7,615.14/x
  3. Step 3: Cross multiply
    13,583.58x = 18,745.71 × 7,615.14
  4. Step 4: Simplify right side
    13,583.58x = 142,751,206.05
  5. Step 5: Solve for x
    x = 142,751,206.05/13,583.58
  6. Step 6: Final answer
    x = 10,509.10

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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.