Home / 19,576.29-27,021.70-11,509.55

Finding the Fourth Proportional to 19,576.29, 27,021.70 and 11,509.55

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Solution

The fourth proportional to 19,576.29, 27,021.70 and 11,509.55 is: 15,886.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,576.29 : 27,021.70 = 11,509.55 : x
  2. Step 2: Convert to fraction form
    19,576.29/27,021.70 = 11,509.55/x
  3. Step 3: Cross multiply
    19,576.29x = 27,021.70 × 11,509.55
  4. Step 4: Simplify right side
    19,576.29x = 311,007,749.82
  5. Step 5: Solve for x
    x = 311,007,749.82/19,576.29
  6. Step 6: Final answer
    x = 15,886.96

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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.