Home / 19,653.22-27,116.78-11,153.48

Finding the Fourth Proportional to 19,653.22, 27,116.78 and 11,153.48

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Solution

The fourth proportional to 19,653.22, 27,116.78 and 11,153.48 is: 15,389.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,653.22 : 27,116.78 = 11,153.48 : x
  2. Step 2: Convert to fraction form
    19,653.22/27,116.78 = 11,153.48/x
  3. Step 3: Cross multiply
    19,653.22x = 27,116.78 × 11,153.48
  4. Step 4: Simplify right side
    19,653.22x = 302,446,463.39
  5. Step 5: Solve for x
    x = 302,446,463.39/19,653.22
  6. Step 6: Final answer
    x = 15,389.16

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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.