Home / 12,560.82-18,830.43-4,775.22

Finding the Fourth Proportional to 12,560.82, 18,830.43 and 4,775.22

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Solution

The fourth proportional to 12,560.82, 18,830.43 and 4,775.22 is: 7,158.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,560.82 : 18,830.43 = 4,775.22 : x
  2. Step 2: Convert to fraction form
    12,560.82/18,830.43 = 4,775.22/x
  3. Step 3: Cross multiply
    12,560.82x = 18,830.43 × 4,775.22
  4. Step 4: Simplify right side
    12,560.82x = 89,919,445.94
  5. Step 5: Solve for x
    x = 89,919,445.94/12,560.82
  6. Step 6: Final answer
    x = 7,158.72

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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.