Home / 18,216.18-25,146.54-13,508.67

Finding the Fourth Proportional to 18,216.18, 25,146.54 and 13,508.67

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Solution

The fourth proportional to 18,216.18, 25,146.54 and 13,508.67 is: 18,648.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,216.18 : 25,146.54 = 13,508.67 : x
  2. Step 2: Convert to fraction form
    18,216.18/25,146.54 = 13,508.67/x
  3. Step 3: Cross multiply
    18,216.18x = 25,146.54 × 13,508.67
  4. Step 4: Simplify right side
    18,216.18x = 339,696,310.50
  5. Step 5: Solve for x
    x = 339,696,310.50/18,216.18
  6. Step 6: Final answer
    x = 18,648.05

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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.