Home / 19,645.64-27,109.54-11,686.38

Finding the Fourth Proportional to 19,645.64, 27,109.54 and 11,686.38

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Solution

The fourth proportional to 19,645.64, 27,109.54 and 11,686.38 is: 16,126.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,645.64 : 27,109.54 = 11,686.38 : x
  2. Step 2: Convert to fraction form
    19,645.64/27,109.54 = 11,686.38/x
  3. Step 3: Cross multiply
    19,645.64x = 27,109.54 × 11,686.38
  4. Step 4: Simplify right side
    19,645.64x = 316,812,233.28
  5. Step 5: Solve for x
    x = 316,812,233.28/19,645.64
  6. Step 6: Final answer
    x = 16,126.34

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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.