Home / 13,583.75-18,728.03-8,795.18

Finding the Fourth Proportional to 13,583.75, 18,728.03 and 8,795.18

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Solution

The fourth proportional to 13,583.75, 18,728.03 and 8,795.18 is: 12,125.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,583.75 : 18,728.03 = 8,795.18 : x
  2. Step 2: Convert to fraction form
    13,583.75/18,728.03 = 8,795.18/x
  3. Step 3: Cross multiply
    13,583.75x = 18,728.03 × 8,795.18
  4. Step 4: Simplify right side
    13,583.75x = 164,716,323.24
  5. Step 5: Solve for x
    x = 164,716,323.24/13,583.75
  6. Step 6: Final answer
    x = 12,125.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.