Home / 18,938-26,134.60-10,556.24

Finding the Fourth Proportional to 18,938, 26,134.60 and 10,556.24

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Solution

The fourth proportional to 18,938, 26,134.60 and 10,556.24 is: 14,567.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,938 : 26,134.60 = 10,556.24 : x
  2. Step 2: Convert to fraction form
    18,938/26,134.60 = 10,556.24/x
  3. Step 3: Cross multiply
    18,938x = 26,134.60 × 10,556.24
  4. Step 4: Simplify right side
    18,938x = 275,883,109.90
  5. Step 5: Solve for x
    x = 275,883,109.90/18,938
  6. Step 6: Final answer
    x = 14,567.70

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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.