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Finding the Fourth Proportional to 8,903.40, 13,354.47 and 3,059.88

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Solution

The fourth proportional to 8,903.40, 13,354.47 and 3,059.88 is: 4,589.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,903.40 : 13,354.47 = 3,059.88 : x
  2. Step 2: Convert to fraction form
    8,903.40/13,354.47 = 3,059.88/x
  3. Step 3: Cross multiply
    8,903.40x = 13,354.47 × 3,059.88
  4. Step 4: Simplify right side
    8,903.40x = 40,863,075.66
  5. Step 5: Solve for x
    x = 40,863,075.66/8,903.40
  6. Step 6: Final answer
    x = 4,589.60

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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.