Home / 8,453.10-12,672.96-4,289.28

Finding the Fourth Proportional to 8,453.10, 12,672.96 and 4,289.28

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Solution

The fourth proportional to 8,453.10, 12,672.96 and 4,289.28 is: 6,430.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,453.10 : 12,672.96 = 4,289.28 : x
  2. Step 2: Convert to fraction form
    8,453.10/12,672.96 = 4,289.28/x
  3. Step 3: Cross multiply
    8,453.10x = 12,672.96 × 4,289.28
  4. Step 4: Simplify right side
    8,453.10x = 54,357,873.87
  5. Step 5: Solve for x
    x = 54,357,873.87/8,453.10
  6. Step 6: Final answer
    x = 6,430.53

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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.