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Finding the Fourth Proportional to 8,950.30, 13,421.40 and 4,017.40

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Solution

The fourth proportional to 8,950.30, 13,421.40 and 4,017.40 is: 6,024.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,950.30 : 13,421.40 = 4,017.40 : x
  2. Step 2: Convert to fraction form
    8,950.30/13,421.40 = 4,017.40/x
  3. Step 3: Cross multiply
    8,950.30x = 13,421.40 × 4,017.40
  4. Step 4: Simplify right side
    8,950.30x = 53,919,132.36
  5. Step 5: Solve for x
    x = 53,919,132.36/8,950.30
  6. Step 6: Final answer
    x = 6,024.28

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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.