Home / 18,683.63-25,783.94-10,300.67

Finding the Fourth Proportional to 18,683.63, 25,783.94 and 10,300.67

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Solution

The fourth proportional to 18,683.63, 25,783.94 and 10,300.67 is: 14,215.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,683.63 : 25,783.94 = 10,300.67 : x
  2. Step 2: Convert to fraction form
    18,683.63/25,783.94 = 10,300.67/x
  3. Step 3: Cross multiply
    18,683.63x = 25,783.94 × 10,300.67
  4. Step 4: Simplify right side
    18,683.63x = 265,591,857.24
  5. Step 5: Solve for x
    x = 265,591,857.24/18,683.63
  6. Step 6: Final answer
    x = 14,215.22

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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.