Home / 13,583.18-20,376.29-12,187.94

Finding the Fourth Proportional to 13,583.18, 20,376.29 and 12,187.94

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Solution

The fourth proportional to 13,583.18, 20,376.29 and 12,187.94 is: 18,283.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,583.18 : 20,376.29 = 12,187.94 : x
  2. Step 2: Convert to fraction form
    13,583.18/20,376.29 = 12,187.94/x
  3. Step 3: Cross multiply
    13,583.18x = 20,376.29 × 12,187.94
  4. Step 4: Simplify right side
    13,583.18x = 248,344,837.12
  5. Step 5: Solve for x
    x = 248,344,837.12/13,583.18
  6. Step 6: Final answer
    x = 18,283.27

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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.