Home / 19,663.79-27,136.28-11,165.27

Finding the Fourth Proportional to 19,663.79, 27,136.28 and 11,165.27

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Solution

The fourth proportional to 19,663.79, 27,136.28 and 11,165.27 is: 15,408.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,663.79 : 27,136.28 = 11,165.27 : x
  2. Step 2: Convert to fraction form
    19,663.79/27,136.28 = 11,165.27/x
  3. Step 3: Cross multiply
    19,663.79x = 27,136.28 × 11,165.27
  4. Step 4: Simplify right side
    19,663.79x = 302,983,785.23
  5. Step 5: Solve for x
    x = 302,983,785.23/19,663.79
  6. Step 6: Final answer
    x = 15,408.21

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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.