Home / 8,378.89-11,562.41-4,602.55

Finding the Fourth Proportional to 8,378.89, 11,562.41 and 4,602.55

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Solution

The fourth proportional to 8,378.89, 11,562.41 and 4,602.55 is: 6,351.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,378.89 : 11,562.41 = 4,602.55 : x
  2. Step 2: Convert to fraction form
    8,378.89/11,562.41 = 4,602.55/x
  3. Step 3: Cross multiply
    8,378.89x = 11,562.41 × 4,602.55
  4. Step 4: Simplify right side
    8,378.89x = 53,216,570.15
  5. Step 5: Solve for x
    x = 53,216,570.15/8,378.89
  6. Step 6: Final answer
    x = 6,351.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.