Home / 18,768.87-25,871.27-14,783.67

Finding the Fourth Proportional to 18,768.87, 25,871.27 and 14,783.67

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Solution

The fourth proportional to 18,768.87, 25,871.27 and 14,783.67 is: 20,378.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,768.87 : 25,871.27 = 14,783.67 : x
  2. Step 2: Convert to fraction form
    18,768.87/25,871.27 = 14,783.67/x
  3. Step 3: Cross multiply
    18,768.87x = 25,871.27 × 14,783.67
  4. Step 4: Simplify right side
    18,768.87x = 382,472,244.24
  5. Step 5: Solve for x
    x = 382,472,244.24/18,768.87
  6. Step 6: Final answer
    x = 20,378.01

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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.