Home / 13,580.56-20,364.12-4,814.16

Finding the Fourth Proportional to 13,580.56, 20,364.12 and 4,814.16

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Solution

The fourth proportional to 13,580.56, 20,364.12 and 4,814.16 is: 7,218.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,580.56 : 20,364.12 = 4,814.16 : x
  2. Step 2: Convert to fraction form
    13,580.56/20,364.12 = 4,814.16/x
  3. Step 3: Cross multiply
    13,580.56x = 20,364.12 × 4,814.16
  4. Step 4: Simplify right side
    13,580.56x = 98,036,131.94
  5. Step 5: Solve for x
    x = 98,036,131.94/13,580.56
  6. Step 6: Final answer
    x = 7,218.86

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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.