Home / 8,475.13-12,703.65-3,207.70

Finding the Fourth Proportional to 8,475.13, 12,703.65 and 3,207.70

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Solution

The fourth proportional to 8,475.13, 12,703.65 and 3,207.70 is: 4,808.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,475.13 : 12,703.65 = 3,207.70 : x
  2. Step 2: Convert to fraction form
    8,475.13/12,703.65 = 3,207.70/x
  3. Step 3: Cross multiply
    8,475.13x = 12,703.65 × 3,207.70
  4. Step 4: Simplify right side
    8,475.13x = 40,749,498.11
  5. Step 5: Solve for x
    x = 40,749,498.11/8,475.13
  6. Step 6: Final answer
    x = 4,808.13

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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.