Home / 12,318.75-16,999.88-7,016.69

Finding the Fourth Proportional to 12,318.75, 16,999.88 and 7,016.69

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Solution

The fourth proportional to 12,318.75, 16,999.88 and 7,016.69 is: 9,683.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,318.75 : 16,999.88 = 7,016.69 : x
  2. Step 2: Convert to fraction form
    12,318.75/16,999.88 = 7,016.69/x
  3. Step 3: Cross multiply
    12,318.75x = 16,999.88 × 7,016.69
  4. Step 4: Simplify right side
    12,318.75x = 119,282,895.41
  5. Step 5: Solve for x
    x = 119,282,895.41/12,318.75
  6. Step 6: Final answer
    x = 9,683.04

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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.