Home / 12,519.41-18,779.72-10,324.13

Finding the Fourth Proportional to 12,519.41, 18,779.72 and 10,324.13

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Solution

The fourth proportional to 12,519.41, 18,779.72 and 10,324.13 is: 15,486.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,519.41 : 18,779.72 = 10,324.13 : x
  2. Step 2: Convert to fraction form
    12,519.41/18,779.72 = 10,324.13/x
  3. Step 3: Cross multiply
    12,519.41x = 18,779.72 × 10,324.13
  4. Step 4: Simplify right side
    12,519.41x = 193,884,125.12
  5. Step 5: Solve for x
    x = 193,884,125.12/12,519.41
  6. Step 6: Final answer
    x = 15,486.69

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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.