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Finding the Fourth Proportional to 8,582.39, 12,866.07 and 4,420.26

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Solution

The fourth proportional to 8,582.39, 12,866.07 and 4,420.26 is: 6,626.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,582.39 : 12,866.07 = 4,420.26 : x
  2. Step 2: Convert to fraction form
    8,582.39/12,866.07 = 4,420.26/x
  3. Step 3: Cross multiply
    8,582.39x = 12,866.07 × 4,420.26
  4. Step 4: Simplify right side
    8,582.39x = 56,871,374.58
  5. Step 5: Solve for x
    x = 56,871,374.58/8,582.39
  6. Step 6: Final answer
    x = 6,626.52

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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.