Home / 8,385.96-12,581.57-3,457.92

Finding the Fourth Proportional to 8,385.96, 12,581.57 and 3,457.92

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Solution

The fourth proportional to 8,385.96, 12,581.57 and 3,457.92 is: 5,187.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,385.96 : 12,581.57 = 3,457.92 : x
  2. Step 2: Convert to fraction form
    8,385.96/12,581.57 = 3,457.92/x
  3. Step 3: Cross multiply
    8,385.96x = 12,581.57 × 3,457.92
  4. Step 4: Simplify right side
    8,385.96x = 43,506,062.53
  5. Step 5: Solve for x
    x = 43,506,062.53/8,385.96
  6. Step 6: Final answer
    x = 5,187.96

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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.