Home / 8,215.36-12,321.12-2,370.72

Finding the Fourth Proportional to 8,215.36, 12,321.12 and 2,370.72

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Solution

The fourth proportional to 8,215.36, 12,321.12 and 2,370.72 is: 3,555.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,215.36 : 12,321.12 = 2,370.72 : x
  2. Step 2: Convert to fraction form
    8,215.36/12,321.12 = 2,370.72/x
  3. Step 3: Cross multiply
    8,215.36x = 12,321.12 × 2,370.72
  4. Step 4: Simplify right side
    8,215.36x = 29,209,925.61
  5. Step 5: Solve for x
    x = 29,209,925.61/8,215.36
  6. Step 6: Final answer
    x = 3,555.53

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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.