Home / 8,427.60-11,629.49-4,890.15

Finding the Fourth Proportional to 8,427.60, 11,629.49 and 4,890.15

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Solution

The fourth proportional to 8,427.60, 11,629.49 and 4,890.15 is: 6,748.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,427.60 : 11,629.49 = 4,890.15 : x
  2. Step 2: Convert to fraction form
    8,427.60/11,629.49 = 4,890.15/x
  3. Step 3: Cross multiply
    8,427.60x = 11,629.49 × 4,890.15
  4. Step 4: Simplify right side
    8,427.60x = 56,869,926.07
  5. Step 5: Solve for x
    x = 56,869,926.07/8,427.60
  6. Step 6: Final answer
    x = 6,748.06

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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.