Home / 12,188.18-16,804.04-9,997.28

Finding the Fourth Proportional to 12,188.18, 16,804.04 and 9,997.28

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Solution

The fourth proportional to 12,188.18, 16,804.04 and 9,997.28 is: 13,783.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,188.18 : 16,804.04 = 9,997.28 : x
  2. Step 2: Convert to fraction form
    12,188.18/16,804.04 = 9,997.28/x
  3. Step 3: Cross multiply
    12,188.18x = 16,804.04 × 9,997.28
  4. Step 4: Simplify right side
    12,188.18x = 167,994,693.01
  5. Step 5: Solve for x
    x = 167,994,693.01/12,188.18
  6. Step 6: Final answer
    x = 13,783.41

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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.