Home / 13,109.52-18,103.99-11,210.14

Finding the Fourth Proportional to 13,109.52, 18,103.99 and 11,210.14

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Solution

The fourth proportional to 13,109.52, 18,103.99 and 11,210.14 is: 15,480.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,109.52 : 18,103.99 = 11,210.14 : x
  2. Step 2: Convert to fraction form
    13,109.52/18,103.99 = 11,210.14/x
  3. Step 3: Cross multiply
    13,109.52x = 18,103.99 × 11,210.14
  4. Step 4: Simplify right side
    13,109.52x = 202,948,262.46
  5. Step 5: Solve for x
    x = 202,948,262.46/13,109.52
  6. Step 6: Final answer
    x = 15,480.98

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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.