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Finding the Fourth Proportional to 8,955, 13,437.43 and 4,338

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Solution

The fourth proportional to 8,955, 13,437.43 and 4,338 is: 6,509.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,955 : 13,437.43 = 4,338 : x
  2. Step 2: Convert to fraction form
    8,955/13,437.43 = 4,338/x
  3. Step 3: Cross multiply
    8,955x = 13,437.43 × 4,338
  4. Step 4: Simplify right side
    8,955x = 58,291,560.50
  5. Step 5: Solve for x
    x = 58,291,560.50/8,955
  6. Step 6: Final answer
    x = 6,509.39

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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.