Home / 13,990.67-19,301.34-8,324.29

Finding the Fourth Proportional to 13,990.67, 19,301.34 and 8,324.29

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Solution

The fourth proportional to 13,990.67, 19,301.34 and 8,324.29 is: 11,484.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,990.67 : 19,301.34 = 8,324.29 : x
  2. Step 2: Convert to fraction form
    13,990.67/19,301.34 = 8,324.29/x
  3. Step 3: Cross multiply
    13,990.67x = 19,301.34 × 8,324.29
  4. Step 4: Simplify right side
    13,990.67x = 160,669,855.04
  5. Step 5: Solve for x
    x = 160,669,855.04/13,990.67
  6. Step 6: Final answer
    x = 11,484.07

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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.