Home / 8,070.72-12,108.51-2,875.38

Finding the Fourth Proportional to 8,070.72, 12,108.51 and 2,875.38

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Solution

The fourth proportional to 8,070.72, 12,108.51 and 2,875.38 is: 4,313.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,070.72 : 12,108.51 = 2,875.38 : x
  2. Step 2: Convert to fraction form
    8,070.72/12,108.51 = 2,875.38/x
  3. Step 3: Cross multiply
    8,070.72x = 12,108.51 × 2,875.38
  4. Step 4: Simplify right side
    8,070.72x = 34,816,567.48
  5. Step 5: Solve for x
    x = 34,816,567.48/8,070.72
  6. Step 6: Final answer
    x = 4,313.94

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.