Home / 11,551.71-15,940.74-6,515.94

Finding the Fourth Proportional to 11,551.71, 15,940.74 and 6,515.94

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Solution

The fourth proportional to 11,551.71, 15,940.74 and 6,515.94 is: 8,991.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,551.71 : 15,940.74 = 6,515.94 : x
  2. Step 2: Convert to fraction form
    11,551.71/15,940.74 = 6,515.94/x
  3. Step 3: Cross multiply
    11,551.71x = 15,940.74 × 6,515.94
  4. Step 4: Simplify right side
    11,551.71x = 103,868,905.40
  5. Step 5: Solve for x
    x = 103,868,905.40/11,551.71
  6. Step 6: Final answer
    x = 8,991.65

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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.