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Finding the Fourth Proportional to 8,436.83, 11,643.53 and 4,899.83

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Solution

The fourth proportional to 8,436.83, 11,643.53 and 4,899.83 is: 6,762.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,436.83 : 11,643.53 = 4,899.83 : x
  2. Step 2: Convert to fraction form
    8,436.83/11,643.53 = 4,899.83/x
  3. Step 3: Cross multiply
    8,436.83x = 11,643.53 × 4,899.83
  4. Step 4: Simplify right side
    8,436.83x = 57,051,234.88
  5. Step 5: Solve for x
    x = 57,051,234.88/8,436.83
  6. Step 6: Final answer
    x = 6,762.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.