Home / 8,386.31-12,580.98-3,453.26

Finding the Fourth Proportional to 8,386.31, 12,580.98 and 3,453.26

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Solution

The fourth proportional to 8,386.31, 12,580.98 and 3,453.26 is: 5,180.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,386.31 : 12,580.98 = 3,453.26 : x
  2. Step 2: Convert to fraction form
    8,386.31/12,580.98 = 3,453.26/x
  3. Step 3: Cross multiply
    8,386.31x = 12,580.98 × 3,453.26
  4. Step 4: Simplify right side
    8,386.31x = 43,445,319.14
  5. Step 5: Solve for x
    x = 43,445,319.14/8,386.31
  6. Step 6: Final answer
    x = 5,180.51

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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.