Home / 8,208.20-12,312.30-2,365.40

Finding the Fourth Proportional to 8,208.20, 12,312.30 and 2,365.40

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Solution

The fourth proportional to 8,208.20, 12,312.30 and 2,365.40 is: 3,548.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,208.20 : 12,312.30 = 2,365.40 : x
  2. Step 2: Convert to fraction form
    8,208.20/12,312.30 = 2,365.40/x
  3. Step 3: Cross multiply
    8,208.20x = 12,312.30 × 2,365.40
  4. Step 4: Simplify right side
    8,208.20x = 29,123,514.42
  5. Step 5: Solve for x
    x = 29,123,514.42/8,208.20
  6. Step 6: Final answer
    x = 3,548.10

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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.