Home / 11,551.49-15,941.04-6,515.70

Finding the Fourth Proportional to 11,551.49, 15,941.04 and 6,515.70

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Solution

The fourth proportional to 11,551.49, 15,941.04 and 6,515.70 is: 8,991.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,551.49 : 15,941.04 = 6,515.70 : x
  2. Step 2: Convert to fraction form
    11,551.49/15,941.04 = 6,515.70/x
  3. Step 3: Cross multiply
    11,551.49x = 15,941.04 × 6,515.70
  4. Step 4: Simplify right side
    11,551.49x = 103,867,034.33
  5. Step 5: Solve for x
    x = 103,867,034.33/11,551.49
  6. Step 6: Final answer
    x = 8,991.66

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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.