Home / 18,980.47-26,191.11-11,024.38

Finding the Fourth Proportional to 18,980.47, 26,191.11 and 11,024.38

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Solution

The fourth proportional to 18,980.47, 26,191.11 and 11,024.38 is: 15,212.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,980.47 : 26,191.11 = 11,024.38 : x
  2. Step 2: Convert to fraction form
    18,980.47/26,191.11 = 11,024.38/x
  3. Step 3: Cross multiply
    18,980.47x = 26,191.11 × 11,024.38
  4. Step 4: Simplify right side
    18,980.47x = 288,740,749.26
  5. Step 5: Solve for x
    x = 288,740,749.26/18,980.47
  6. Step 6: Final answer
    x = 15,212.52

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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.