Home / 12,511.08-17,262.48-7,474.38

Finding the Fourth Proportional to 12,511.08, 17,262.48 and 7,474.38

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Solution

The fourth proportional to 12,511.08, 17,262.48 and 7,474.38 is: 10,312.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,511.08 : 17,262.48 = 7,474.38 : x
  2. Step 2: Convert to fraction form
    12,511.08/17,262.48 = 7,474.38/x
  3. Step 3: Cross multiply
    12,511.08x = 17,262.48 × 7,474.38
  4. Step 4: Simplify right side
    12,511.08x = 129,026,335.26
  5. Step 5: Solve for x
    x = 129,026,335.26/12,511.08
  6. Step 6: Final answer
    x = 10,312.97

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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.