Home / 12,318.60-16,999.67-6,653.35

Finding the Fourth Proportional to 12,318.60, 16,999.67 and 6,653.35

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Solution

The fourth proportional to 12,318.60, 16,999.67 and 6,653.35 is: 9,181.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,318.60 : 16,999.67 = 6,653.35 : x
  2. Step 2: Convert to fraction form
    12,318.60/16,999.67 = 6,653.35/x
  3. Step 3: Cross multiply
    12,318.60x = 16,999.67 × 6,653.35
  4. Step 4: Simplify right side
    12,318.60x = 113,104,754.39
  5. Step 5: Solve for x
    x = 113,104,754.39/12,318.60
  6. Step 6: Final answer
    x = 9,181.62

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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.