Home / 8,207.96-12,312.70-3,276.40

Finding the Fourth Proportional to 8,207.96, 12,312.70 and 3,276.40

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Solution

The fourth proportional to 8,207.96, 12,312.70 and 3,276.40 is: 4,914.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,207.96 : 12,312.70 = 3,276.40 : x
  2. Step 2: Convert to fraction form
    8,207.96/12,312.70 = 3,276.40/x
  3. Step 3: Cross multiply
    8,207.96x = 12,312.70 × 3,276.40
  4. Step 4: Simplify right side
    8,207.96x = 40,341,330.28
  5. Step 5: Solve for x
    x = 40,341,330.28/8,207.96
  6. Step 6: Final answer
    x = 4,914.90

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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.