Home / 13,368.75-20,072.83-7,457.18

Finding the Fourth Proportional to 13,368.75, 20,072.83 and 7,457.18

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Solution

The fourth proportional to 13,368.75, 20,072.83 and 7,457.18 is: 11,196.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,368.75 : 20,072.83 = 7,457.18 : x
  2. Step 2: Convert to fraction form
    13,368.75/20,072.83 = 7,457.18/x
  3. Step 3: Cross multiply
    13,368.75x = 20,072.83 × 7,457.18
  4. Step 4: Simplify right side
    13,368.75x = 149,686,775.24
  5. Step 5: Solve for x
    x = 149,686,775.24/13,368.75
  6. Step 6: Final answer
    x = 11,196.77

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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.