Home / 8,378.55-12,570.93-3,445.52

Finding the Fourth Proportional to 8,378.55, 12,570.93 and 3,445.52

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Solution

The fourth proportional to 8,378.55, 12,570.93 and 3,445.52 is: 5,169.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,378.55 : 12,570.93 = 3,445.52 : x
  2. Step 2: Convert to fraction form
    8,378.55/12,570.93 = 3,445.52/x
  3. Step 3: Cross multiply
    8,378.55x = 12,570.93 × 3,445.52
  4. Step 4: Simplify right side
    8,378.55x = 43,313,327.88
  5. Step 5: Solve for x
    x = 43,313,327.88/8,378.55
  6. Step 6: Final answer
    x = 5,169.55

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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.