Home / 12,218.81-16,861.96-6,913.52

Finding the Fourth Proportional to 12,218.81, 16,861.96 and 6,913.52

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Solution

The fourth proportional to 12,218.81, 16,861.96 and 6,913.52 is: 9,540.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,218.81 : 16,861.96 = 6,913.52 : x
  2. Step 2: Convert to fraction form
    12,218.81/16,861.96 = 6,913.52/x
  3. Step 3: Cross multiply
    12,218.81x = 16,861.96 × 6,913.52
  4. Step 4: Simplify right side
    12,218.81x = 116,575,497.70
  5. Step 5: Solve for x
    x = 116,575,497.70/12,218.81
  6. Step 6: Final answer
    x = 9,540.66

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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.