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Finding the Fourth Proportional to 19,777.75, 29,663.43 and 7,303.65

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Solution

The fourth proportional to 19,777.75, 29,663.43 and 7,303.65 is: 10,954.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,777.75 : 29,663.43 = 7,303.65 : x
  2. Step 2: Convert to fraction form
    19,777.75/29,663.43 = 7,303.65/x
  3. Step 3: Cross multiply
    19,777.75x = 29,663.43 × 7,303.65
  4. Step 4: Simplify right side
    19,777.75x = 216,651,379.83
  5. Step 5: Solve for x
    x = 216,651,379.83/19,777.75
  6. Step 6: Final answer
    x = 10,954.30

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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.