Home / 13,997.29-19,316.25-7,709.66

Finding the Fourth Proportional to 13,997.29, 19,316.25 and 7,709.66

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Solution

The fourth proportional to 13,997.29, 19,316.25 and 7,709.66 is: 10,639.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,997.29 : 19,316.25 = 7,709.66 : x
  2. Step 2: Convert to fraction form
    13,997.29/19,316.25 = 7,709.66/x
  3. Step 3: Cross multiply
    13,997.29x = 19,316.25 × 7,709.66
  4. Step 4: Simplify right side
    13,997.29x = 148,921,719.98
  5. Step 5: Solve for x
    x = 148,921,719.98/13,997.29
  6. Step 6: Final answer
    x = 10,639.33

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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.