Home / 14,278.22-21,419.66-4,915.97

Finding the Fourth Proportional to 14,278.22, 21,419.66 and 4,915.97

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Solution

The fourth proportional to 14,278.22, 21,419.66 and 4,915.97 is: 7,374.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,278.22 : 21,419.66 = 4,915.97 : x
  2. Step 2: Convert to fraction form
    14,278.22/21,419.66 = 4,915.97/x
  3. Step 3: Cross multiply
    14,278.22x = 21,419.66 × 4,915.97
  4. Step 4: Simplify right side
    14,278.22x = 105,298,405.97
  5. Step 5: Solve for x
    x = 105,298,405.97/14,278.22
  6. Step 6: Final answer
    x = 7,374.76

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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.