Home / 18,675.29-28,014.99-7,580.37

Finding the Fourth Proportional to 18,675.29, 28,014.99 and 7,580.37

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Solution

The fourth proportional to 18,675.29, 28,014.99 and 7,580.37 is: 11,371.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,675.29 : 28,014.99 = 7,580.37 : x
  2. Step 2: Convert to fraction form
    18,675.29/28,014.99 = 7,580.37/x
  3. Step 3: Cross multiply
    18,675.29x = 28,014.99 × 7,580.37
  4. Step 4: Simplify right side
    18,675.29x = 212,363,989.75
  5. Step 5: Solve for x
    x = 212,363,989.75/18,675.29
  6. Step 6: Final answer
    x = 11,371.39

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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.