Home / 8,215.60-12,325.40-2,372.08

Finding the Fourth Proportional to 8,215.60, 12,325.40 and 2,372.08

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Solution

The fourth proportional to 8,215.60, 12,325.40 and 2,372.08 is: 3,558.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,215.60 : 12,325.40 = 2,372.08 : x
  2. Step 2: Convert to fraction form
    8,215.60/12,325.40 = 2,372.08/x
  3. Step 3: Cross multiply
    8,215.60x = 12,325.40 × 2,372.08
  4. Step 4: Simplify right side
    8,215.60x = 29,236,834.83
  5. Step 5: Solve for x
    x = 29,236,834.83/8,215.60
  6. Step 6: Final answer
    x = 3,558.70

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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.