Home / 18,890.39-26,069.84-10,935.38

Finding the Fourth Proportional to 18,890.39, 26,069.84 and 10,935.38

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Solution

The fourth proportional to 18,890.39, 26,069.84 and 10,935.38 is: 15,091.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,890.39 : 26,069.84 = 10,935.38 : x
  2. Step 2: Convert to fraction form
    18,890.39/26,069.84 = 10,935.38/x
  3. Step 3: Cross multiply
    18,890.39x = 26,069.84 × 10,935.38
  4. Step 4: Simplify right side
    18,890.39x = 285,083,421.91
  5. Step 5: Solve for x
    x = 285,083,421.91/18,890.39
  6. Step 6: Final answer
    x = 15,091.46

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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.