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Finding the Fourth Proportional to 9,880.84, 13,641.06 and 6,860.44

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Solution

The fourth proportional to 9,880.84, 13,641.06 and 6,860.44 is: 9,471.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,880.84 : 13,641.06 = 6,860.44 : x
  2. Step 2: Convert to fraction form
    9,880.84/13,641.06 = 6,860.44/x
  3. Step 3: Cross multiply
    9,880.84x = 13,641.06 × 6,860.44
  4. Step 4: Simplify right side
    9,880.84x = 93,583,673.67
  5. Step 5: Solve for x
    x = 93,583,673.67/9,880.84
  6. Step 6: Final answer
    x = 9,471.23

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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.