Home / 12,010.99-18,106.58-11,208.18

Finding the Fourth Proportional to 12,010.99, 18,106.58 and 11,208.18

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Solution

The fourth proportional to 12,010.99, 18,106.58 and 11,208.18 is: 16,896.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,010.99 : 18,106.58 = 11,208.18 : x
  2. Step 2: Convert to fraction form
    12,010.99/18,106.58 = 11,208.18/x
  3. Step 3: Cross multiply
    12,010.99x = 18,106.58 × 11,208.18
  4. Step 4: Simplify right side
    12,010.99x = 202,941,751.78
  5. Step 5: Solve for x
    x = 202,941,751.78/12,010.99
  6. Step 6: Final answer
    x = 16,896.34

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.