Home / 19,707.77-27,196.76-12,634.21

Finding the Fourth Proportional to 19,707.77, 27,196.76 and 12,634.21

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Solution

The fourth proportional to 19,707.77, 27,196.76 and 12,634.21 is: 17,435.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,707.77 : 27,196.76 = 12,634.21 : x
  2. Step 2: Convert to fraction form
    19,707.77/27,196.76 = 12,634.21/x
  3. Step 3: Cross multiply
    19,707.77x = 27,196.76 × 12,634.21
  4. Step 4: Simplify right side
    19,707.77x = 343,609,642.74
  5. Step 5: Solve for x
    x = 343,609,642.74/19,707.77
  6. Step 6: Final answer
    x = 17,435.23

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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.