Home / 8,386.16-12,580.74-3,453.05

Finding the Fourth Proportional to 8,386.16, 12,580.74 and 3,453.05

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Solution

The fourth proportional to 8,386.16, 12,580.74 and 3,453.05 is: 5,180.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,386.16 : 12,580.74 = 3,453.05 : x
  2. Step 2: Convert to fraction form
    8,386.16/12,580.74 = 3,453.05/x
  3. Step 3: Cross multiply
    8,386.16x = 12,580.74 × 3,453.05
  4. Step 4: Simplify right side
    8,386.16x = 43,441,861.35
  5. Step 5: Solve for x
    x = 43,441,861.35/8,386.16
  6. Step 6: Final answer
    x = 5,180.19

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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.