Home / 11,318.73-16,981.02-4,298.86

Finding the Fourth Proportional to 11,318.73, 16,981.02 and 4,298.86

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Solution

The fourth proportional to 11,318.73, 16,981.02 and 4,298.86 is: 6,449.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,318.73 : 16,981.02 = 4,298.86 : x
  2. Step 2: Convert to fraction form
    11,318.73/16,981.02 = 4,298.86/x
  3. Step 3: Cross multiply
    11,318.73x = 16,981.02 × 4,298.86
  4. Step 4: Simplify right side
    11,318.73x = 72,999,027.64
  5. Step 5: Solve for x
    x = 72,999,027.64/11,318.73
  6. Step 6: Final answer
    x = 6,449.40

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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.