Home / 14,040.22-21,045.20-7,459.78

Finding the Fourth Proportional to 14,040.22, 21,045.20 and 7,459.78

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Solution

The fourth proportional to 14,040.22, 21,045.20 and 7,459.78 is: 11,181.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,040.22 : 21,045.20 = 7,459.78 : x
  2. Step 2: Convert to fraction form
    14,040.22/21,045.20 = 7,459.78/x
  3. Step 3: Cross multiply
    14,040.22x = 21,045.20 × 7,459.78
  4. Step 4: Simplify right side
    14,040.22x = 156,992,562.06
  5. Step 5: Solve for x
    x = 156,992,562.06/14,040.22
  6. Step 6: Final answer
    x = 11,181.63

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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.