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Finding the Fourth Proportional to 13,210.00, 18,230.65 and 7,241.68

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Solution

The fourth proportional to 13,210.00, 18,230.65 and 7,241.68 is: 9,993.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,210.00 : 18,230.65 = 7,241.68 : x
  2. Step 2: Convert to fraction form
    13,210.00/18,230.65 = 7,241.68/x
  3. Step 3: Cross multiply
    13,210.00x = 18,230.65 × 7,241.68
  4. Step 4: Simplify right side
    13,210.00x = 132,020,497.28
  5. Step 5: Solve for x
    x = 132,020,497.28/13,210.00
  6. Step 6: Final answer
    x = 9,993.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.