Home / 13,176.99-19,772.78-5,391.27

Finding the Fourth Proportional to 13,176.99, 19,772.78 and 5,391.27

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Solution

The fourth proportional to 13,176.99, 19,772.78 and 5,391.27 is: 8,089.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,176.99 : 19,772.78 = 5,391.27 : x
  2. Step 2: Convert to fraction form
    13,176.99/19,772.78 = 5,391.27/x
  3. Step 3: Cross multiply
    13,176.99x = 19,772.78 × 5,391.27
  4. Step 4: Simplify right side
    13,176.99x = 106,600,368.67
  5. Step 5: Solve for x
    x = 106,600,368.67/13,176.99
  6. Step 6: Final answer
    x = 8,089.89

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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.