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Finding the Fourth Proportional to 14,259.72, 19,676.67 and 7,885.87

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Solution

The fourth proportional to 14,259.72, 19,676.67 and 7,885.87 is: 10,881.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,259.72 : 19,676.67 = 7,885.87 : x
  2. Step 2: Convert to fraction form
    14,259.72/19,676.67 = 7,885.87/x
  3. Step 3: Cross multiply
    14,259.72x = 19,676.67 × 7,885.87
  4. Step 4: Simplify right side
    14,259.72x = 155,167,661.65
  5. Step 5: Solve for x
    x = 155,167,661.65/14,259.72
  6. Step 6: Final answer
    x = 10,881.54

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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.