Home / 13,199.84-18,216.32-8,727.52

Finding the Fourth Proportional to 13,199.84, 18,216.32 and 8,727.52

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Solution

The fourth proportional to 13,199.84, 18,216.32 and 8,727.52 is: 12,044.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,199.84 : 18,216.32 = 8,727.52 : x
  2. Step 2: Convert to fraction form
    13,199.84/18,216.32 = 8,727.52/x
  3. Step 3: Cross multiply
    13,199.84x = 18,216.32 × 8,727.52
  4. Step 4: Simplify right side
    13,199.84x = 158,983,297.13
  5. Step 5: Solve for x
    x = 158,983,297.13/13,199.84
  6. Step 6: Final answer
    x = 12,044.34

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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.