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Finding the Fourth Proportional to 8,483.19, 12,729.71 and 3,552.40

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Solution

The fourth proportional to 8,483.19, 12,729.71 and 3,552.40 is: 5,330.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,483.19 : 12,729.71 = 3,552.40 : x
  2. Step 2: Convert to fraction form
    8,483.19/12,729.71 = 3,552.40/x
  3. Step 3: Cross multiply
    8,483.19x = 12,729.71 × 3,552.40
  4. Step 4: Simplify right side
    8,483.19x = 45,221,021.80
  5. Step 5: Solve for x
    x = 45,221,021.80/8,483.19
  6. Step 6: Final answer
    x = 5,330.66

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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.