Home / 12,598.78-18,895.64-11,974.30

Finding the Fourth Proportional to 12,598.78, 18,895.64 and 11,974.30

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Solution

The fourth proportional to 12,598.78, 18,895.64 and 11,974.30 is: 17,959.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,598.78 : 18,895.64 = 11,974.30 : x
  2. Step 2: Convert to fraction form
    12,598.78/18,895.64 = 11,974.30/x
  3. Step 3: Cross multiply
    12,598.78x = 18,895.64 × 11,974.30
  4. Step 4: Simplify right side
    12,598.78x = 226,262,062.05
  5. Step 5: Solve for x
    x = 226,262,062.05/12,598.78
  6. Step 6: Final answer
    x = 17,959.05

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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.