Home / 12,409.17-17,121.69-7,373.40

Finding the Fourth Proportional to 12,409.17, 17,121.69 and 7,373.40

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Solution

The fourth proportional to 12,409.17, 17,121.69 and 7,373.40 is: 10,173.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,409.17 : 17,121.69 = 7,373.40 : x
  2. Step 2: Convert to fraction form
    12,409.17/17,121.69 = 7,373.40/x
  3. Step 3: Cross multiply
    12,409.17x = 17,121.69 × 7,373.40
  4. Step 4: Simplify right side
    12,409.17x = 126,245,069.05
  5. Step 5: Solve for x
    x = 126,245,069.05/12,409.17
  6. Step 6: Final answer
    x = 10,173.53

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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.