Home / 19,747.89-29,621.86-7,907.00

Finding the Fourth Proportional to 19,747.89, 29,621.86 and 7,907.00

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Solution

The fourth proportional to 19,747.89, 29,621.86 and 7,907.00 is: 11,860.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,747.89 : 29,621.86 = 7,907.00 : x
  2. Step 2: Convert to fraction form
    19,747.89/29,621.86 = 7,907.00/x
  3. Step 3: Cross multiply
    19,747.89x = 29,621.86 × 7,907.00
  4. Step 4: Simplify right side
    19,747.89x = 234,219,879.14
  5. Step 5: Solve for x
    x = 234,219,879.14/19,747.89
  6. Step 6: Final answer
    x = 11,860.50

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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.