Home / 13,945.86-19,228.05-9,965.52

Finding the Fourth Proportional to 13,945.86, 19,228.05 and 9,965.52

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Solution

The fourth proportional to 13,945.86, 19,228.05 and 9,965.52 is: 13,740.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,945.86 : 19,228.05 = 9,965.52 : x
  2. Step 2: Convert to fraction form
    13,945.86/19,228.05 = 9,965.52/x
  3. Step 3: Cross multiply
    13,945.86x = 19,228.05 × 9,965.52
  4. Step 4: Simplify right side
    13,945.86x = 191,617,516.84
  5. Step 5: Solve for x
    x = 191,617,516.84/13,945.86
  6. Step 6: Final answer
    x = 13,740.10

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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.