Home / 11,965.96-16,515.42-6,931.31

Finding the Fourth Proportional to 11,965.96, 16,515.42 and 6,931.31

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Solution

The fourth proportional to 11,965.96, 16,515.42 and 6,931.31 is: 9,566.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,965.96 : 16,515.42 = 6,931.31 : x
  2. Step 2: Convert to fraction form
    11,965.96/16,515.42 = 6,931.31/x
  3. Step 3: Cross multiply
    11,965.96x = 16,515.42 × 6,931.31
  4. Step 4: Simplify right side
    11,965.96x = 114,473,495.80
  5. Step 5: Solve for x
    x = 114,473,495.80/11,965.96
  6. Step 6: Final answer
    x = 9,566.60

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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.