Home / 14,013.12-20,998.98-7,765.56

Finding the Fourth Proportional to 14,013.12, 20,998.98 and 7,765.56

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Solution

The fourth proportional to 14,013.12, 20,998.98 and 7,765.56 is: 11,636.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,013.12 : 20,998.98 = 7,765.56 : x
  2. Step 2: Convert to fraction form
    14,013.12/20,998.98 = 7,765.56/x
  3. Step 3: Cross multiply
    14,013.12x = 20,998.98 × 7,765.56
  4. Step 4: Simplify right side
    14,013.12x = 163,068,839.13
  5. Step 5: Solve for x
    x = 163,068,839.13/14,013.12
  6. Step 6: Final answer
    x = 11,636.87

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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.