Home / 18,218.85-25,153.64-14,869.67

Finding the Fourth Proportional to 18,218.85, 25,153.64 and 14,869.67

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Solution

The fourth proportional to 18,218.85, 25,153.64 and 14,869.67 is: 20,529.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,218.85 : 25,153.64 = 14,869.67 : x
  2. Step 2: Convert to fraction form
    18,218.85/25,153.64 = 14,869.67/x
  3. Step 3: Cross multiply
    18,218.85x = 25,153.64 × 14,869.67
  4. Step 4: Simplify right side
    18,218.85x = 374,026,125.98
  5. Step 5: Solve for x
    x = 374,026,125.98/18,218.85
  6. Step 6: Final answer
    x = 20,529.62

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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.