Home / 11,278.08-15,562.20-6,740.73

Finding the Fourth Proportional to 11,278.08, 15,562.20 and 6,740.73

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Solution

The fourth proportional to 11,278.08, 15,562.20 and 6,740.73 is: 9,301.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,278.08 : 15,562.20 = 6,740.73 : x
  2. Step 2: Convert to fraction form
    11,278.08/15,562.20 = 6,740.73/x
  3. Step 3: Cross multiply
    11,278.08x = 15,562.20 × 6,740.73
  4. Step 4: Simplify right side
    11,278.08x = 104,900,588.41
  5. Step 5: Solve for x
    x = 104,900,588.41/11,278.08
  6. Step 6: Final answer
    x = 9,301.28

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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.