Home / 8,039.15-12,062.82-4,712.20

Finding the Fourth Proportional to 8,039.15, 12,062.82 and 4,712.20

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Solution

The fourth proportional to 8,039.15, 12,062.82 and 4,712.20 is: 7,070.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,039.15 : 12,062.82 = 4,712.20 : x
  2. Step 2: Convert to fraction form
    8,039.15/12,062.82 = 4,712.20/x
  3. Step 3: Cross multiply
    8,039.15x = 12,062.82 × 4,712.20
  4. Step 4: Simplify right side
    8,039.15x = 56,842,420.40
  5. Step 5: Solve for x
    x = 56,842,420.40/8,039.15
  6. Step 6: Final answer
    x = 7,070.70

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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.