Home / 8,002.86-12,005.40-2,809.14

Finding the Fourth Proportional to 8,002.86, 12,005.40 and 2,809.14

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Solution

The fourth proportional to 8,002.86, 12,005.40 and 2,809.14 is: 4,214.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,002.86 : 12,005.40 = 2,809.14 : x
  2. Step 2: Convert to fraction form
    8,002.86/12,005.40 = 2,809.14/x
  3. Step 3: Cross multiply
    8,002.86x = 12,005.40 × 2,809.14
  4. Step 4: Simplify right side
    8,002.86x = 33,724,849.36
  5. Step 5: Solve for x
    x = 33,724,849.36/8,002.86
  6. Step 6: Final answer
    x = 4,214.10

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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.