Home / 13,311.84-18,369.50-7,343.56

Finding the Fourth Proportional to 13,311.84, 18,369.50 and 7,343.56

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Solution

The fourth proportional to 13,311.84, 18,369.50 and 7,343.56 is: 10,133.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,311.84 : 18,369.50 = 7,343.56 : x
  2. Step 2: Convert to fraction form
    13,311.84/18,369.50 = 7,343.56/x
  3. Step 3: Cross multiply
    13,311.84x = 18,369.50 × 7,343.56
  4. Step 4: Simplify right side
    13,311.84x = 134,897,525.42
  5. Step 5: Solve for x
    x = 134,897,525.42/13,311.84
  6. Step 6: Final answer
    x = 10,133.65

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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.