Home / 8,005.06-12,009.87-2,740.77

Finding the Fourth Proportional to 8,005.06, 12,009.87 and 2,740.77

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Solution

The fourth proportional to 8,005.06, 12,009.87 and 2,740.77 is: 4,111.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,005.06 : 12,009.87 = 2,740.77 : x
  2. Step 2: Convert to fraction form
    8,005.06/12,009.87 = 2,740.77/x
  3. Step 3: Cross multiply
    8,005.06x = 12,009.87 × 2,740.77
  4. Step 4: Simplify right side
    8,005.06x = 32,916,291.40
  5. Step 5: Solve for x
    x = 32,916,291.40/8,005.06
  6. Step 6: Final answer
    x = 4,111.93

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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.