Home / 8,215.48-12,324.30-4,320.10

Finding the Fourth Proportional to 8,215.48, 12,324.30 and 4,320.10

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Solution

The fourth proportional to 8,215.48, 12,324.30 and 4,320.10 is: 6,480.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,215.48 : 12,324.30 = 4,320.10 : x
  2. Step 2: Convert to fraction form
    8,215.48/12,324.30 = 4,320.10/x
  3. Step 3: Cross multiply
    8,215.48x = 12,324.30 × 4,320.10
  4. Step 4: Simplify right side
    8,215.48x = 53,242,208.43
  5. Step 5: Solve for x
    x = 53,242,208.43/8,215.48
  6. Step 6: Final answer
    x = 6,480.72

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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.