Home / 11,005.24-16,485.84-6,620.28

Finding the Fourth Proportional to 11,005.24, 16,485.84 and 6,620.28

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Solution

The fourth proportional to 11,005.24, 16,485.84 and 6,620.28 is: 9,917.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,005.24 : 16,485.84 = 6,620.28 : x
  2. Step 2: Convert to fraction form
    11,005.24/16,485.84 = 6,620.28/x
  3. Step 3: Cross multiply
    11,005.24x = 16,485.84 × 6,620.28
  4. Step 4: Simplify right side
    11,005.24x = 109,140,876.84
  5. Step 5: Solve for x
    x = 109,140,876.84/11,005.24
  6. Step 6: Final answer
    x = 9,917.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.