Home / 12,289.42-16,958.76-6,983.50

Finding the Fourth Proportional to 12,289.42, 16,958.76 and 6,983.50

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Solution

The fourth proportional to 12,289.42, 16,958.76 and 6,983.50 is: 9,636.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,289.42 : 16,958.76 = 6,983.50 : x
  2. Step 2: Convert to fraction form
    12,289.42/16,958.76 = 6,983.50/x
  3. Step 3: Cross multiply
    12,289.42x = 16,958.76 × 6,983.50
  4. Step 4: Simplify right side
    12,289.42x = 118,431,500.46
  5. Step 5: Solve for x
    x = 118,431,500.46/12,289.42
  6. Step 6: Final answer
    x = 9,636.87

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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.