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Finding the Fourth Proportional to 14,860.40, 20,507.10 and 8,146.04

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Solution

The fourth proportional to 14,860.40, 20,507.10 and 8,146.04 is: 11,241.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,860.40 : 20,507.10 = 8,146.04 : x
  2. Step 2: Convert to fraction form
    14,860.40/20,507.10 = 8,146.04/x
  3. Step 3: Cross multiply
    14,860.40x = 20,507.10 × 8,146.04
  4. Step 4: Simplify right side
    14,860.40x = 167,051,656.88
  5. Step 5: Solve for x
    x = 167,051,656.88/14,860.40
  6. Step 6: Final answer
    x = 11,241.40

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.