Home / 18,708.89-28,082.40-9,355.67

Finding the Fourth Proportional to 18,708.89, 28,082.40 and 9,355.67

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Solution

The fourth proportional to 18,708.89, 28,082.40 and 9,355.67 is: 14,043.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,708.89 : 28,082.40 = 9,355.67 : x
  2. Step 2: Convert to fraction form
    18,708.89/28,082.40 = 9,355.67/x
  3. Step 3: Cross multiply
    18,708.89x = 28,082.40 × 9,355.67
  4. Step 4: Simplify right side
    18,708.89x = 262,729,597.02
  5. Step 5: Solve for x
    x = 262,729,597.02/18,708.89
  6. Step 6: Final answer
    x = 14,043.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.