Home / 14,543.77-21,817.70-5,181.78

Finding the Fourth Proportional to 14,543.77, 21,817.70 and 5,181.78

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Solution

The fourth proportional to 14,543.77, 21,817.70 and 5,181.78 is: 7,773.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,543.77 : 21,817.70 = 5,181.78 : x
  2. Step 2: Convert to fraction form
    14,543.77/21,817.70 = 5,181.78/x
  3. Step 3: Cross multiply
    14,543.77x = 21,817.70 × 5,181.78
  4. Step 4: Simplify right side
    14,543.77x = 113,054,564.63
  5. Step 5: Solve for x
    x = 113,054,564.63/14,543.77
  6. Step 6: Final answer
    x = 7,773.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.