Home / 19,971.79-27,561.96-11,476.66

Finding the Fourth Proportional to 19,971.79, 27,561.96 and 11,476.66

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Solution

The fourth proportional to 19,971.79, 27,561.96 and 11,476.66 is: 15,838.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,971.79 : 27,561.96 = 11,476.66 : x
  2. Step 2: Convert to fraction form
    19,971.79/27,561.96 = 11,476.66/x
  3. Step 3: Cross multiply
    19,971.79x = 27,561.96 × 11,476.66
  4. Step 4: Simplify right side
    19,971.79x = 316,319,131.91
  5. Step 5: Solve for x
    x = 316,319,131.91/19,971.79
  6. Step 6: Final answer
    x = 15,838.30

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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.