Home / 14,212.56-21,318.84-4,976.40

Finding the Fourth Proportional to 14,212.56, 21,318.84 and 4,976.40

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Solution

The fourth proportional to 14,212.56, 21,318.84 and 4,976.40 is: 7,464.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,212.56 : 21,318.84 = 4,976.40 : x
  2. Step 2: Convert to fraction form
    14,212.56/21,318.84 = 4,976.40/x
  3. Step 3: Cross multiply
    14,212.56x = 21,318.84 × 4,976.40
  4. Step 4: Simplify right side
    14,212.56x = 106,091,075.38
  5. Step 5: Solve for x
    x = 106,091,075.38/14,212.56
  6. Step 6: Final answer
    x = 7,464.60

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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.