Home / 18,213.18-25,134.65-10,255.67

Finding the Fourth Proportional to 18,213.18, 25,134.65 and 10,255.67

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Solution

The fourth proportional to 18,213.18, 25,134.65 and 10,255.67 is: 14,153.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,213.18 : 25,134.65 = 10,255.67 : x
  2. Step 2: Convert to fraction form
    18,213.18/25,134.65 = 10,255.67/x
  3. Step 3: Cross multiply
    18,213.18x = 25,134.65 × 10,255.67
  4. Step 4: Simplify right side
    18,213.18x = 257,772,725.98
  5. Step 5: Solve for x
    x = 257,772,725.98/18,213.18
  6. Step 6: Final answer
    x = 14,153.09

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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.