Home / 13,477.80-18,596.16-8,172.48

Finding the Fourth Proportional to 13,477.80, 18,596.16 and 8,172.48

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Solution

The fourth proportional to 13,477.80, 18,596.16 and 8,172.48 is: 11,276.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,477.80 : 18,596.16 = 8,172.48 : x
  2. Step 2: Convert to fraction form
    13,477.80/18,596.16 = 8,172.48/x
  3. Step 3: Cross multiply
    13,477.80x = 18,596.16 × 8,172.48
  4. Step 4: Simplify right side
    13,477.80x = 151,976,745.68
  5. Step 5: Solve for x
    x = 151,976,745.68/13,477.80
  6. Step 6: Final answer
    x = 11,276.08

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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.