Home / 12,513.50-17,272.48-7,211.85

Finding the Fourth Proportional to 12,513.50, 17,272.48 and 7,211.85

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Solution

The fourth proportional to 12,513.50, 17,272.48 and 7,211.85 is: 9,954.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,513.50 : 17,272.48 = 7,211.85 : x
  2. Step 2: Convert to fraction form
    12,513.50/17,272.48 = 7,211.85/x
  3. Step 3: Cross multiply
    12,513.50x = 17,272.48 × 7,211.85
  4. Step 4: Simplify right side
    12,513.50x = 124,566,516.86
  5. Step 5: Solve for x
    x = 124,566,516.86/12,513.50
  6. Step 6: Final answer
    x = 9,954.57

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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.