Home / 18,968.19-26,177.55-13,955.43

Finding the Fourth Proportional to 18,968.19, 26,177.55 and 13,955.43

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Solution

The fourth proportional to 18,968.19, 26,177.55 and 13,955.43 is: 19,259.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,968.19 : 26,177.55 = 13,955.43 : x
  2. Step 2: Convert to fraction form
    18,968.19/26,177.55 = 13,955.43/x
  3. Step 3: Cross multiply
    18,968.19x = 26,177.55 × 13,955.43
  4. Step 4: Simplify right side
    18,968.19x = 365,318,966.60
  5. Step 5: Solve for x
    x = 365,318,966.60/18,968.19
  6. Step 6: Final answer
    x = 19,259.56

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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.