Home / 13,745.08-18,964.02-8,436.52

Finding the Fourth Proportional to 13,745.08, 18,964.02 and 8,436.52

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Solution

The fourth proportional to 13,745.08, 18,964.02 and 8,436.52 is: 11,639.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,745.08 : 18,964.02 = 8,436.52 : x
  2. Step 2: Convert to fraction form
    13,745.08/18,964.02 = 8,436.52/x
  3. Step 3: Cross multiply
    13,745.08x = 18,964.02 × 8,436.52
  4. Step 4: Simplify right side
    13,745.08x = 159,990,334.01
  5. Step 5: Solve for x
    x = 159,990,334.01/13,745.08
  6. Step 6: Final answer
    x = 11,639.83

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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.