Home / 11,190.30-16,785.45-11,075.10

Finding the Fourth Proportional to 11,190.30, 16,785.45 and 11,075.10

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Solution

The fourth proportional to 11,190.30, 16,785.45 and 11,075.10 is: 16,612.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,190.30 : 16,785.45 = 11,075.10 : x
  2. Step 2: Convert to fraction form
    11,190.30/16,785.45 = 11,075.10/x
  3. Step 3: Cross multiply
    11,190.30x = 16,785.45 × 11,075.10
  4. Step 4: Simplify right side
    11,190.30x = 185,900,537.30
  5. Step 5: Solve for x
    x = 185,900,537.30/11,190.30
  6. Step 6: Final answer
    x = 16,612.65

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.