Home / 18,979.47-26,189.73-11,023.38

Finding the Fourth Proportional to 18,979.47, 26,189.73 and 11,023.38

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Solution

The fourth proportional to 18,979.47, 26,189.73 and 11,023.38 is: 15,211.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,979.47 : 26,189.73 = 11,023.38 : x
  2. Step 2: Convert to fraction form
    18,979.47/26,189.73 = 11,023.38/x
  3. Step 3: Cross multiply
    18,979.47x = 26,189.73 × 11,023.38
  4. Step 4: Simplify right side
    18,979.47x = 288,699,345.89
  5. Step 5: Solve for x
    x = 288,699,345.89/18,979.47
  6. Step 6: Final answer
    x = 15,211.14

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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.