Home / 12,553.95-17,347.37-9,145.03

Finding the Fourth Proportional to 12,553.95, 17,347.37 and 9,145.03

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Solution

The fourth proportional to 12,553.95, 17,347.37 and 9,145.03 is: 12,636.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,553.95 : 17,347.37 = 9,145.03 : x
  2. Step 2: Convert to fraction form
    12,553.95/17,347.37 = 9,145.03/x
  3. Step 3: Cross multiply
    12,553.95x = 17,347.37 × 9,145.03
  4. Step 4: Simplify right side
    12,553.95x = 158,642,198.57
  5. Step 5: Solve for x
    x = 158,642,198.57/12,553.95
  6. Step 6: Final answer
    x = 12,636.84

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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.