Home / 8,390.08-12,586.64-3,457.02

Finding the Fourth Proportional to 8,390.08, 12,586.64 and 3,457.02

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Solution

The fourth proportional to 8,390.08, 12,586.64 and 3,457.02 is: 5,186.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,390.08 : 12,586.64 = 3,457.02 : x
  2. Step 2: Convert to fraction form
    8,390.08/12,586.64 = 3,457.02/x
  3. Step 3: Cross multiply
    8,390.08x = 12,586.64 × 3,457.02
  4. Step 4: Simplify right side
    8,390.08x = 43,512,296.13
  5. Step 5: Solve for x
    x = 43,512,296.13/8,390.08
  6. Step 6: Final answer
    x = 5,186.16

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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.