Home / 12,245.72-16,898.38-6,940.40

Finding the Fourth Proportional to 12,245.72, 16,898.38 and 6,940.40

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Solution

The fourth proportional to 12,245.72, 16,898.38 and 6,940.40 is: 9,577.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,245.72 : 16,898.38 = 6,940.40 : x
  2. Step 2: Convert to fraction form
    12,245.72/16,898.38 = 6,940.40/x
  3. Step 3: Cross multiply
    12,245.72x = 16,898.38 × 6,940.40
  4. Step 4: Simplify right side
    12,245.72x = 117,281,516.55
  5. Step 5: Solve for x
    x = 117,281,516.55/12,245.72
  6. Step 6: Final answer
    x = 9,577.35

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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.