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Finding the Fourth Proportional to 14,166, 19,549.08 and 7,878.24

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Solution

The fourth proportional to 14,166, 19,549.08 and 7,878.24 is: 10,871.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,166 : 19,549.08 = 7,878.24 : x
  2. Step 2: Convert to fraction form
    14,166/19,549.08 = 7,878.24/x
  3. Step 3: Cross multiply
    14,166x = 19,549.08 × 7,878.24
  4. Step 4: Simplify right side
    14,166x = 154,012,344.02
  5. Step 5: Solve for x
    x = 154,012,344.02/14,166
  6. Step 6: Final answer
    x = 10,871.97

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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.