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Finding the Fourth Proportional to 9,330.99, 13,998.60 and 3,090.99

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Solution

The fourth proportional to 9,330.99, 13,998.60 and 3,090.99 is: 4,637.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,330.99 : 13,998.60 = 3,090.99 : x
  2. Step 2: Convert to fraction form
    9,330.99/13,998.60 = 3,090.99/x
  3. Step 3: Cross multiply
    9,330.99x = 13,998.60 × 3,090.99
  4. Step 4: Simplify right side
    9,330.99x = 43,269,532.61
  5. Step 5: Solve for x
    x = 43,269,532.61/9,330.99
  6. Step 6: Final answer
    x = 4,637.19

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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.