Home / 13,743.12-20,602.52-6,623.76

Finding the Fourth Proportional to 13,743.12, 20,602.52 and 6,623.76

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Solution

The fourth proportional to 13,743.12, 20,602.52 and 6,623.76 is: 9,929.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,743.12 : 20,602.52 = 6,623.76 : x
  2. Step 2: Convert to fraction form
    13,743.12/20,602.52 = 6,623.76/x
  3. Step 3: Cross multiply
    13,743.12x = 20,602.52 × 6,623.76
  4. Step 4: Simplify right side
    13,743.12x = 136,466,147.88
  5. Step 5: Solve for x
    x = 136,466,147.88/13,743.12
  6. Step 6: Final answer
    x = 9,929.78

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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.