Home / 13,933.89-20,907.99-9,257.11

Finding the Fourth Proportional to 13,933.89, 20,907.99 and 9,257.11

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Solution

The fourth proportional to 13,933.89, 20,907.99 and 9,257.11 is: 13,890.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,933.89 : 20,907.99 = 9,257.11 : x
  2. Step 2: Convert to fraction form
    13,933.89/20,907.99 = 9,257.11/x
  3. Step 3: Cross multiply
    13,933.89x = 20,907.99 × 9,257.11
  4. Step 4: Simplify right side
    13,933.89x = 193,547,511.04
  5. Step 5: Solve for x
    x = 193,547,511.04/13,933.89
  6. Step 6: Final answer
    x = 13,890.41

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1.5x scale

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.