Home / 13,998.29-19,317.63-7,710.66

Finding the Fourth Proportional to 13,998.29, 19,317.63 and 7,710.66

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Solution

The fourth proportional to 13,998.29, 19,317.63 and 7,710.66 is: 10,640.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,998.29 : 19,317.63 = 7,710.66 : x
  2. Step 2: Convert to fraction form
    13,998.29/19,317.63 = 7,710.66/x
  3. Step 3: Cross multiply
    13,998.29x = 19,317.63 × 7,710.66
  4. Step 4: Simplify right side
    13,998.29x = 148,951,676.94
  5. Step 5: Solve for x
    x = 148,951,676.94/13,998.29
  6. Step 6: Final answer
    x = 10,640.71

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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.