Home / 19,011.33-26,239.61-12,638.45

Finding the Fourth Proportional to 19,011.33, 26,239.61 and 12,638.45

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Solution

The fourth proportional to 19,011.33, 26,239.61 and 12,638.45 is: 17,443.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,011.33 : 26,239.61 = 12,638.45 : x
  2. Step 2: Convert to fraction form
    19,011.33/26,239.61 = 12,638.45/x
  3. Step 3: Cross multiply
    19,011.33x = 26,239.61 × 12,638.45
  4. Step 4: Simplify right side
    19,011.33x = 331,628,096.20
  5. Step 5: Solve for x
    x = 331,628,096.20/19,011.33
  6. Step 6: Final answer
    x = 17,443.71

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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.