Home / 12,219.27-16,861.95-6,913.23

Finding the Fourth Proportional to 12,219.27, 16,861.95 and 6,913.23

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Solution

The fourth proportional to 12,219.27, 16,861.95 and 6,913.23 is: 9,539.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,219.27 : 16,861.95 = 6,913.23 : x
  2. Step 2: Convert to fraction form
    12,219.27/16,861.95 = 6,913.23/x
  3. Step 3: Cross multiply
    12,219.27x = 16,861.95 × 6,913.23
  4. Step 4: Simplify right side
    12,219.27x = 116,570,538.60
  5. Step 5: Solve for x
    x = 116,570,538.60/12,219.27
  6. Step 6: Final answer
    x = 9,539.89

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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.