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Finding the Fourth Proportional to 8,948.78, 13,421.61 and 2,375.63

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Solution

The fourth proportional to 8,948.78, 13,421.61 and 2,375.63 is: 3,563.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,948.78 : 13,421.61 = 2,375.63 : x
  2. Step 2: Convert to fraction form
    8,948.78/13,421.61 = 2,375.63/x
  3. Step 3: Cross multiply
    8,948.78x = 13,421.61 × 2,375.63
  4. Step 4: Simplify right side
    8,948.78x = 31,884,779.36
  5. Step 5: Solve for x
    x = 31,884,779.36/8,948.78
  6. Step 6: Final answer
    x = 3,563.03

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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.