Home / 13,529.72-18,674.70-7,942.52

Finding the Fourth Proportional to 13,529.72, 18,674.70 and 7,942.52

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Solution

The fourth proportional to 13,529.72, 18,674.70 and 7,942.52 is: 10,962.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,529.72 : 18,674.70 = 7,942.52 : x
  2. Step 2: Convert to fraction form
    13,529.72/18,674.70 = 7,942.52/x
  3. Step 3: Cross multiply
    13,529.72x = 18,674.70 × 7,942.52
  4. Step 4: Simplify right side
    13,529.72x = 148,324,178.24
  5. Step 5: Solve for x
    x = 148,324,178.24/13,529.72
  6. Step 6: Final answer
    x = 10,962.84

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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.