Home / 14,512.30-21,772.60-7,118.89

Finding the Fourth Proportional to 14,512.30, 21,772.60 and 7,118.89

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Solution

The fourth proportional to 14,512.30, 21,772.60 and 7,118.89 is: 10,680.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,512.30 : 21,772.60 = 7,118.89 : x
  2. Step 2: Convert to fraction form
    14,512.30/21,772.60 = 7,118.89/x
  3. Step 3: Cross multiply
    14,512.30x = 21,772.60 × 7,118.89
  4. Step 4: Simplify right side
    14,512.30x = 154,996,672.19
  5. Step 5: Solve for x
    x = 154,996,672.19/14,512.30
  6. Step 6: Final answer
    x = 10,680.37

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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.