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Finding the Fourth Proportional to 8,020.40, 11,068.74 and 4,483.40

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Solution

The fourth proportional to 8,020.40, 11,068.74 and 4,483.40 is: 6,187.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,020.40 : 11,068.74 = 4,483.40 : x
  2. Step 2: Convert to fraction form
    8,020.40/11,068.74 = 4,483.40/x
  3. Step 3: Cross multiply
    8,020.40x = 11,068.74 × 4,483.40
  4. Step 4: Simplify right side
    8,020.40x = 49,625,533.57
  5. Step 5: Solve for x
    x = 49,625,533.57/8,020.40
  6. Step 6: Final answer
    x = 6,187.42

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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.