Home / 18,934.35-26,154.06-15,362.58

Finding the Fourth Proportional to 18,934.35, 26,154.06 and 15,362.58

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Solution

The fourth proportional to 18,934.35, 26,154.06 and 15,362.58 is: 21,220.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,934.35 : 26,154.06 = 15,362.58 : x
  2. Step 2: Convert to fraction form
    18,934.35/26,154.06 = 15,362.58/x
  3. Step 3: Cross multiply
    18,934.35x = 26,154.06 × 15,362.58
  4. Step 4: Simplify right side
    18,934.35x = 401,793,839.07
  5. Step 5: Solve for x
    x = 401,793,839.07/18,934.35
  6. Step 6: Final answer
    x = 21,220.37

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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.