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Finding the Fourth Proportional to 8,978.99, 13,471.23 and 4,599.55

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Solution

The fourth proportional to 8,978.99, 13,471.23 and 4,599.55 is: 6,900.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,978.99 : 13,471.23 = 4,599.55 : x
  2. Step 2: Convert to fraction form
    8,978.99/13,471.23 = 4,599.55/x
  3. Step 3: Cross multiply
    8,978.99x = 13,471.23 × 4,599.55
  4. Step 4: Simplify right side
    8,978.99x = 61,961,595.95
  5. Step 5: Solve for x
    x = 61,961,595.95/8,978.99
  6. Step 6: Final answer
    x = 6,900.73

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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.