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Finding the Fourth Proportional to 13,323.89, 19,980.14 and 4,998.14

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Solution

The fourth proportional to 13,323.89, 19,980.14 and 4,998.14 is: 7,495.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,323.89 : 19,980.14 = 4,998.14 : x
  2. Step 2: Convert to fraction form
    13,323.89/19,980.14 = 4,998.14/x
  3. Step 3: Cross multiply
    13,323.89x = 19,980.14 × 4,998.14
  4. Step 4: Simplify right side
    13,323.89x = 99,863,486.97
  5. Step 5: Solve for x
    x = 99,863,486.97/13,323.89
  6. Step 6: Final answer
    x = 7,495.07

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Double scale
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Similar ratio
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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.