Home / 19,645.26-27,108.09-11,146.74

Finding the Fourth Proportional to 19,645.26, 27,108.09 and 11,146.74

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Solution

The fourth proportional to 19,645.26, 27,108.09 and 11,146.74 is: 15,381.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,645.26 : 27,108.09 = 11,146.74 : x
  2. Step 2: Convert to fraction form
    19,645.26/27,108.09 = 11,146.74/x
  3. Step 3: Cross multiply
    19,645.26x = 27,108.09 × 11,146.74
  4. Step 4: Simplify right side
    19,645.26x = 302,166,831.13
  5. Step 5: Solve for x
    x = 302,166,831.13/19,645.26
  6. Step 6: Final answer
    x = 15,381.16

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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.