Home / 18,753.48-28,115.62-9,388.67

Finding the Fourth Proportional to 18,753.48, 28,115.62 and 9,388.67

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Solution

The fourth proportional to 18,753.48, 28,115.62 and 9,388.67 is: 14,075.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,753.48 : 28,115.62 = 9,388.67 : x
  2. Step 2: Convert to fraction form
    18,753.48/28,115.62 = 9,388.67/x
  3. Step 3: Cross multiply
    18,753.48x = 28,115.62 × 9,388.67
  4. Step 4: Simplify right side
    18,753.48x = 263,968,324.84
  5. Step 5: Solve for x
    x = 263,968,324.84/18,753.48
  6. Step 6: Final answer
    x = 14,075.70

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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.