Home / 8,390.93-12,586.66-3,457.22

Finding the Fourth Proportional to 8,390.93, 12,586.66 and 3,457.22

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Solution

The fourth proportional to 8,390.93, 12,586.66 and 3,457.22 is: 5,185.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,390.93 : 12,586.66 = 3,457.22 : x
  2. Step 2: Convert to fraction form
    8,390.93/12,586.66 = 3,457.22/x
  3. Step 3: Cross multiply
    8,390.93x = 12,586.66 × 3,457.22
  4. Step 4: Simplify right side
    8,390.93x = 43,514,781.11
  5. Step 5: Solve for x
    x = 43,514,781.11/8,390.93
  6. Step 6: Final answer
    x = 5,185.93

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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.