Home / 11,361.24-15,679.28-6,325.40

Finding the Fourth Proportional to 11,361.24, 15,679.28 and 6,325.40

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Solution

The fourth proportional to 11,361.24, 15,679.28 and 6,325.40 is: 8,729.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,361.24 : 15,679.28 = 6,325.40 : x
  2. Step 2: Convert to fraction form
    11,361.24/15,679.28 = 6,325.40/x
  3. Step 3: Cross multiply
    11,361.24x = 15,679.28 × 6,325.40
  4. Step 4: Simplify right side
    11,361.24x = 99,177,717.71
  5. Step 5: Solve for x
    x = 99,177,717.71/11,361.24
  6. Step 6: Final answer
    x = 8,729.48

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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.