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Finding the Fourth Proportional to 14,146.84, 19,523.82 and 7,859.80

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Solution

The fourth proportional to 14,146.84, 19,523.82 and 7,859.80 is: 10,847.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,146.84 : 19,523.82 = 7,859.80 : x
  2. Step 2: Convert to fraction form
    14,146.84/19,523.82 = 7,859.80/x
  3. Step 3: Cross multiply
    14,146.84x = 19,523.82 × 7,859.80
  4. Step 4: Simplify right side
    14,146.84x = 153,453,320.44
  5. Step 5: Solve for x
    x = 153,453,320.44/14,146.84
  6. Step 6: Final answer
    x = 10,847.18

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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.