Home / 18,945.69-26,143.83-10,447.84

Finding the Fourth Proportional to 18,945.69, 26,143.83 and 10,447.84

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Solution

The fourth proportional to 18,945.69, 26,143.83 and 10,447.84 is: 14,417.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,945.69 : 26,143.83 = 10,447.84 : x
  2. Step 2: Convert to fraction form
    18,945.69/26,143.83 = 10,447.84/x
  3. Step 3: Cross multiply
    18,945.69x = 26,143.83 × 10,447.84
  4. Step 4: Simplify right side
    18,945.69x = 273,146,552.83
  5. Step 5: Solve for x
    x = 273,146,552.83/18,945.69
  6. Step 6: Final answer
    x = 14,417.35

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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.