Home / 18,082.85-27,102.40-9,312.98

Finding the Fourth Proportional to 18,082.85, 27,102.40 and 9,312.98

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Solution

The fourth proportional to 18,082.85, 27,102.40 and 9,312.98 is: 13,958.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,082.85 : 27,102.40 = 9,312.98 : x
  2. Step 2: Convert to fraction form
    18,082.85/27,102.40 = 9,312.98/x
  3. Step 3: Cross multiply
    18,082.85x = 27,102.40 × 9,312.98
  4. Step 4: Simplify right side
    18,082.85x = 252,403,950.36
  5. Step 5: Solve for x
    x = 252,403,950.36/18,082.85
  6. Step 6: Final answer
    x = 13,958.20

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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.