Home / 12,395.56-17,114.76-7,621.92

Finding the Fourth Proportional to 12,395.56, 17,114.76 and 7,621.92

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Solution

The fourth proportional to 12,395.56, 17,114.76 and 7,621.92 is: 10,523.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,395.56 : 17,114.76 = 7,621.92 : x
  2. Step 2: Convert to fraction form
    12,395.56/17,114.76 = 7,621.92/x
  3. Step 3: Cross multiply
    12,395.56x = 17,114.76 × 7,621.92
  4. Step 4: Simplify right side
    12,395.56x = 130,447,331.54
  5. Step 5: Solve for x
    x = 130,447,331.54/12,395.56
  6. Step 6: Final answer
    x = 10,523.71

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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.