Home / 15,053.85-20,774.68-11,270.34

Finding the Fourth Proportional to 15,053.85, 20,774.68 and 11,270.34

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Solution

The fourth proportional to 15,053.85, 20,774.68 and 11,270.34 is: 15,553.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,053.85 : 20,774.68 = 11,270.34 : x
  2. Step 2: Convert to fraction form
    15,053.85/20,774.68 = 11,270.34/x
  3. Step 3: Cross multiply
    15,053.85x = 20,774.68 × 11,270.34
  4. Step 4: Simplify right side
    15,053.85x = 234,137,678.82
  5. Step 5: Solve for x
    x = 234,137,678.82/15,053.85
  6. Step 6: Final answer
    x = 15,553.34

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Half scale
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Double scale
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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.