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Finding the Fourth Proportional to 14,099.81, 19,459.71 and 8,130.24

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Solution

The fourth proportional to 14,099.81, 19,459.71 and 8,130.24 is: 11,220.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,099.81 : 19,459.71 = 8,130.24 : x
  2. Step 2: Convert to fraction form
    14,099.81/19,459.71 = 8,130.24/x
  3. Step 3: Cross multiply
    14,099.81x = 19,459.71 × 8,130.24
  4. Step 4: Simplify right side
    14,099.81x = 158,212,112.63
  5. Step 5: Solve for x
    x = 158,212,112.63/14,099.81
  6. Step 6: Final answer
    x = 11,220.87

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