Home / 8,006.12-12,010.79-2,812.40

Finding the Fourth Proportional to 8,006.12, 12,010.79 and 2,812.40

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Solution

The fourth proportional to 8,006.12, 12,010.79 and 2,812.40 is: 4,219.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,006.12 : 12,010.79 = 2,812.40 : x
  2. Step 2: Convert to fraction form
    8,006.12/12,010.79 = 2,812.40/x
  3. Step 3: Cross multiply
    8,006.12x = 12,010.79 × 2,812.40
  4. Step 4: Simplify right side
    8,006.12x = 33,779,092.77
  5. Step 5: Solve for x
    x = 33,779,092.77/8,006.12
  6. Step 6: Final answer
    x = 4,219.16

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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.