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Finding the Fourth Proportional to 8,235.99, 12,350.93 and 5,111.37

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Solution

The fourth proportional to 8,235.99, 12,350.93 and 5,111.37 is: 7,665.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,235.99 : 12,350.93 = 5,111.37 : x
  2. Step 2: Convert to fraction form
    8,235.99/12,350.93 = 5,111.37/x
  3. Step 3: Cross multiply
    8,235.99x = 12,350.93 × 5,111.37
  4. Step 4: Simplify right side
    8,235.99x = 63,130,147.52
  5. Step 5: Solve for x
    x = 63,130,147.52/8,235.99
  6. Step 6: Final answer
    x = 7,665.16

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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.