Home / 19,647.49-29,460.47-7,789.25

Finding the Fourth Proportional to 19,647.49, 29,460.47 and 7,789.25

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Solution

The fourth proportional to 19,647.49, 29,460.47 and 7,789.25 is: 11,679.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,647.49 : 29,460.47 = 7,789.25 : x
  2. Step 2: Convert to fraction form
    19,647.49/29,460.47 = 7,789.25/x
  3. Step 3: Cross multiply
    19,647.49x = 29,460.47 × 7,789.25
  4. Step 4: Simplify right side
    19,647.49x = 229,474,927.00
  5. Step 5: Solve for x
    x = 229,474,927.00/19,647.49
  6. Step 6: Final answer
    x = 11,679.61

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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.