Home / 12,511.55-17,272.19-7,205.34

Finding the Fourth Proportional to 12,511.55, 17,272.19 and 7,205.34

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Solution

The fourth proportional to 12,511.55, 17,272.19 and 7,205.34 is: 9,946.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,511.55 : 17,272.19 = 7,205.34 : x
  2. Step 2: Convert to fraction form
    12,511.55/17,272.19 = 7,205.34/x
  3. Step 3: Cross multiply
    12,511.55x = 17,272.19 × 7,205.34
  4. Step 4: Simplify right side
    12,511.55x = 124,452,001.49
  5. Step 5: Solve for x
    x = 124,452,001.49/12,511.55
  6. Step 6: Final answer
    x = 9,946.97

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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.