Home / 8,143.49-12,207.90-2,875.35

Finding the Fourth Proportional to 8,143.49, 12,207.90 and 2,875.35

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Solution

The fourth proportional to 8,143.49, 12,207.90 and 2,875.35 is: 4,310.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,143.49 : 12,207.90 = 2,875.35 : x
  2. Step 2: Convert to fraction form
    8,143.49/12,207.90 = 2,875.35/x
  3. Step 3: Cross multiply
    8,143.49x = 12,207.90 × 2,875.35
  4. Step 4: Simplify right side
    8,143.49x = 35,101,985.27
  5. Step 5: Solve for x
    x = 35,101,985.27/8,143.49
  6. Step 6: Final answer
    x = 4,310.44

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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.