Home / 13,516.80-18,651.84-7,547.52

Finding the Fourth Proportional to 13,516.80, 18,651.84 and 7,547.52

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Solution

The fourth proportional to 13,516.80, 18,651.84 and 7,547.52 is: 10,414.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,516.80 : 18,651.84 = 7,547.52 : x
  2. Step 2: Convert to fraction form
    13,516.80/18,651.84 = 7,547.52/x
  3. Step 3: Cross multiply
    13,516.80x = 18,651.84 × 7,547.52
  4. Step 4: Simplify right side
    13,516.80x = 140,775,135.44
  5. Step 5: Solve for x
    x = 140,775,135.44/13,516.80
  6. Step 6: Final answer
    x = 10,414.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.