Home / 13,458.68-18,579.48-9,232.64

Finding the Fourth Proportional to 13,458.68, 18,579.48 and 9,232.64

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Solution

The fourth proportional to 13,458.68, 18,579.48 and 9,232.64 is: 12,745.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,458.68 : 18,579.48 = 9,232.64 : x
  2. Step 2: Convert to fraction form
    13,458.68/18,579.48 = 9,232.64/x
  3. Step 3: Cross multiply
    13,458.68x = 18,579.48 × 9,232.64
  4. Step 4: Simplify right side
    13,458.68x = 171,537,650.23
  5. Step 5: Solve for x
    x = 171,537,650.23/13,458.68
  6. Step 6: Final answer
    x = 12,745.50

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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.