Home / 19,538.69-26,961.75-11,471.49

Finding the Fourth Proportional to 19,538.69, 26,961.75 and 11,471.49

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Solution

The fourth proportional to 19,538.69, 26,961.75 and 11,471.49 is: 15,829.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,538.69 : 26,961.75 = 11,471.49 : x
  2. Step 2: Convert to fraction form
    19,538.69/26,961.75 = 11,471.49/x
  3. Step 3: Cross multiply
    19,538.69x = 26,961.75 × 11,471.49
  4. Step 4: Simplify right side
    19,538.69x = 309,291,445.51
  5. Step 5: Solve for x
    x = 309,291,445.51/19,538.69
  6. Step 6: Final answer
    x = 15,829.70

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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.