Home / 11,361.24-15,678.63-6,325.20

Finding the Fourth Proportional to 11,361.24, 15,678.63 and 6,325.20

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Solution

The fourth proportional to 11,361.24, 15,678.63 and 6,325.20 is: 8,728.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,361.24 : 15,678.63 = 6,325.20 : x
  2. Step 2: Convert to fraction form
    11,361.24/15,678.63 = 6,325.20/x
  3. Step 3: Cross multiply
    11,361.24x = 15,678.63 × 6,325.20
  4. Step 4: Simplify right side
    11,361.24x = 99,170,470.48
  5. Step 5: Solve for x
    x = 99,170,470.48/11,361.24
  6. Step 6: Final answer
    x = 8,728.84

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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.