Home / 12,516.95-18,779.16-7,250.73

Finding the Fourth Proportional to 12,516.95, 18,779.16 and 7,250.73

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Solution

The fourth proportional to 12,516.95, 18,779.16 and 7,250.73 is: 10,878.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,516.95 : 18,779.16 = 7,250.73 : x
  2. Step 2: Convert to fraction form
    12,516.95/18,779.16 = 7,250.73/x
  3. Step 3: Cross multiply
    12,516.95x = 18,779.16 × 7,250.73
  4. Step 4: Simplify right side
    12,516.95x = 136,162,618.79
  5. Step 5: Solve for x
    x = 136,162,618.79/12,516.95
  6. Step 6: Final answer
    x = 10,878.26

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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.