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Finding the Fourth Proportional to 10,679.73, 14,738.84 and 7,860.01

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Solution

The fourth proportional to 10,679.73, 14,738.84 and 7,860.01 is: 10,847.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,679.73 : 14,738.84 = 7,860.01 : x
  2. Step 2: Convert to fraction form
    10,679.73/14,738.84 = 7,860.01/x
  3. Step 3: Cross multiply
    10,679.73x = 14,738.84 × 7,860.01
  4. Step 4: Simplify right side
    10,679.73x = 115,847,429.79
  5. Step 5: Solve for x
    x = 115,847,429.79/10,679.73
  6. Step 6: Final answer
    x = 10,847.41

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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.