Home / 19,769.87-29,661.64-12,365.51

Finding the Fourth Proportional to 19,769.87, 29,661.64 and 12,365.51

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Solution

The fourth proportional to 19,769.87, 29,661.64 and 12,365.51 is: 18,552.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,769.87 : 29,661.64 = 12,365.51 : x
  2. Step 2: Convert to fraction form
    19,769.87/29,661.64 = 12,365.51/x
  3. Step 3: Cross multiply
    19,769.87x = 29,661.64 × 12,365.51
  4. Step 4: Simplify right side
    19,769.87x = 366,781,363.22
  5. Step 5: Solve for x
    x = 366,781,363.22/19,769.87
  6. Step 6: Final answer
    x = 18,552.54

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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.