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Finding the Fourth Proportional to 10,404.75, 15,603.87 and 3,477.63

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Solution

The fourth proportional to 10,404.75, 15,603.87 and 3,477.63 is: 5,215.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,404.75 : 15,603.87 = 3,477.63 : x
  2. Step 2: Convert to fraction form
    10,404.75/15,603.87 = 3,477.63/x
  3. Step 3: Cross multiply
    10,404.75x = 15,603.87 × 3,477.63
  4. Step 4: Simplify right side
    10,404.75x = 54,264,486.43
  5. Step 5: Solve for x
    x = 54,264,486.43/10,404.75
  6. Step 6: Final answer
    x = 5,215.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.