Home / 13,554.05-18,704.54-7,586.87

Finding the Fourth Proportional to 13,554.05, 18,704.54 and 7,586.87

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Solution

The fourth proportional to 13,554.05, 18,704.54 and 7,586.87 is: 10,469.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,554.05 : 18,704.54 = 7,586.87 : x
  2. Step 2: Convert to fraction form
    13,554.05/18,704.54 = 7,586.87/x
  3. Step 3: Cross multiply
    13,554.05x = 18,704.54 × 7,586.87
  4. Step 4: Simplify right side
    13,554.05x = 141,908,781.93
  5. Step 5: Solve for x
    x = 141,908,781.93/13,554.05
  6. Step 6: Final answer
    x = 10,469.85

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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.