Home / 19,817.84-27,360.43-13,109.21

Finding the Fourth Proportional to 19,817.84, 27,360.43 and 13,109.21

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Solution

The fourth proportional to 19,817.84, 27,360.43 and 13,109.21 is: 18,098.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,817.84 : 27,360.43 = 13,109.21 : x
  2. Step 2: Convert to fraction form
    19,817.84/27,360.43 = 13,109.21/x
  3. Step 3: Cross multiply
    19,817.84x = 27,360.43 × 13,109.21
  4. Step 4: Simplify right side
    19,817.84x = 358,673,658.19
  5. Step 5: Solve for x
    x = 358,673,658.19/19,817.84
  6. Step 6: Final answer
    x = 18,098.53

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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.