Home / 13,231.79-19,855.47-5,338.07

Finding the Fourth Proportional to 13,231.79, 19,855.47 and 5,338.07

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Solution

The fourth proportional to 13,231.79, 19,855.47 and 5,338.07 is: 8,010.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,231.79 : 19,855.47 = 5,338.07 : x
  2. Step 2: Convert to fraction form
    13,231.79/19,855.47 = 5,338.07/x
  3. Step 3: Cross multiply
    13,231.79x = 19,855.47 × 5,338.07
  4. Step 4: Simplify right side
    13,231.79x = 105,989,789.47
  5. Step 5: Solve for x
    x = 105,989,789.47/13,231.79
  6. Step 6: Final answer
    x = 8,010.24

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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.