Home / 12,511.37-17,262.79-7,477.22

Finding the Fourth Proportional to 12,511.37, 17,262.79 and 7,477.22

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Solution

The fourth proportional to 12,511.37, 17,262.79 and 7,477.22 is: 10,316.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,511.37 : 17,262.79 = 7,477.22 : x
  2. Step 2: Convert to fraction form
    12,511.37/17,262.79 = 7,477.22/x
  3. Step 3: Cross multiply
    12,511.37x = 17,262.79 × 7,477.22
  4. Step 4: Simplify right side
    12,511.37x = 129,077,703.11
  5. Step 5: Solve for x
    x = 129,077,703.11/12,511.37
  6. Step 6: Final answer
    x = 10,316.83

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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.