Home / 19,119.59-26,386.82-11,567.78

Finding the Fourth Proportional to 19,119.59, 26,386.82 and 11,567.78

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Solution

The fourth proportional to 19,119.59, 26,386.82 and 11,567.78 is: 15,964.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,119.59 : 26,386.82 = 11,567.78 : x
  2. Step 2: Convert to fraction form
    19,119.59/26,386.82 = 11,567.78/x
  3. Step 3: Cross multiply
    19,119.59x = 26,386.82 × 11,567.78
  4. Step 4: Simplify right side
    19,119.59x = 305,236,825.64
  5. Step 5: Solve for x
    x = 305,236,825.64/19,119.59
  6. Step 6: Final answer
    x = 15,964.61

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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.