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Finding the Fourth Proportional to 8,750.47, 13,125.16 and 3,556.21

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Solution

The fourth proportional to 8,750.47, 13,125.16 and 3,556.21 is: 5,334.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,750.47 : 13,125.16 = 3,556.21 : x
  2. Step 2: Convert to fraction form
    8,750.47/13,125.16 = 3,556.21/x
  3. Step 3: Cross multiply
    8,750.47x = 13,125.16 × 3,556.21
  4. Step 4: Simplify right side
    8,750.47x = 46,675,825.24
  5. Step 5: Solve for x
    x = 46,675,825.24/8,750.47
  6. Step 6: Final answer
    x = 5,334.09

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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.