Home / 13,304.27-18,361.12-7,639.76

Finding the Fourth Proportional to 13,304.27, 18,361.12 and 7,639.76

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Solution

The fourth proportional to 13,304.27, 18,361.12 and 7,639.76 is: 10,543.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,304.27 : 18,361.12 = 7,639.76 : x
  2. Step 2: Convert to fraction form
    13,304.27/18,361.12 = 7,639.76/x
  3. Step 3: Cross multiply
    13,304.27x = 18,361.12 × 7,639.76
  4. Step 4: Simplify right side
    13,304.27x = 140,274,439.23
  5. Step 5: Solve for x
    x = 140,274,439.23/13,304.27
  6. Step 6: Final answer
    x = 10,543.57

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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.