Home / 18,938.68-26,108.02-13,255.84

Finding the Fourth Proportional to 18,938.68, 26,108.02 and 13,255.84

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Solution

The fourth proportional to 18,938.68, 26,108.02 and 13,255.84 is: 18,273.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,938.68 : 26,108.02 = 13,255.84 : x
  2. Step 2: Convert to fraction form
    18,938.68/26,108.02 = 13,255.84/x
  3. Step 3: Cross multiply
    18,938.68x = 26,108.02 × 13,255.84
  4. Step 4: Simplify right side
    18,938.68x = 346,083,735.84
  5. Step 5: Solve for x
    x = 346,083,735.84/18,938.68
  6. Step 6: Final answer
    x = 18,273.91

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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.