Home / 9,720.36-14,579.82-3,878.28

Finding the Fourth Proportional to 9,720.36, 14,579.82 and 3,878.28

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Solution

The fourth proportional to 9,720.36, 14,579.82 and 3,878.28 is: 5,817.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,720.36 : 14,579.82 = 3,878.28 : x
  2. Step 2: Convert to fraction form
    9,720.36/14,579.82 = 3,878.28/x
  3. Step 3: Cross multiply
    9,720.36x = 14,579.82 × 3,878.28
  4. Step 4: Simplify right side
    9,720.36x = 56,544,624.31
  5. Step 5: Solve for x
    x = 56,544,624.31/9,720.36
  6. Step 6: Final answer
    x = 5,817.13

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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.