Home / 18,989.74-26,194.89-11,430.82

Finding the Fourth Proportional to 18,989.74, 26,194.89 and 11,430.82

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Solution

The fourth proportional to 18,989.74, 26,194.89 and 11,430.82 is: 15,767.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,989.74 : 26,194.89 = 11,430.82 : x
  2. Step 2: Convert to fraction form
    18,989.74/26,194.89 = 11,430.82/x
  3. Step 3: Cross multiply
    18,989.74x = 26,194.89 × 11,430.82
  4. Step 4: Simplify right side
    18,989.74x = 299,429,072.51
  5. Step 5: Solve for x
    x = 299,429,072.51/18,989.74
  6. Step 6: Final answer
    x = 15,767.94

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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.