Home / 18,946.06-26,144.43-10,447.78

Finding the Fourth Proportional to 18,946.06, 26,144.43 and 10,447.78

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Solution

The fourth proportional to 18,946.06, 26,144.43 and 10,447.78 is: 14,417.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,946.06 : 26,144.43 = 10,447.78 : x
  2. Step 2: Convert to fraction form
    18,946.06/26,144.43 = 10,447.78/x
  3. Step 3: Cross multiply
    18,946.06x = 26,144.43 × 10,447.78
  4. Step 4: Simplify right side
    18,946.06x = 273,151,252.87
  5. Step 5: Solve for x
    x = 273,151,252.87/18,946.06
  6. Step 6: Final answer
    x = 14,417.31

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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.