Home / 9,989.67-13,785.27-5,737.74

Finding the Fourth Proportional to 9,989.67, 13,785.27 and 5,737.74

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Solution

The fourth proportional to 9,989.67, 13,785.27 and 5,737.74 is: 7,917.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989.67 : 13,785.27 = 5,737.74 : x
  2. Step 2: Convert to fraction form
    9,989.67/13,785.27 = 5,737.74/x
  3. Step 3: Cross multiply
    9,989.67x = 13,785.27 × 5,737.74
  4. Step 4: Simplify right side
    9,989.67x = 79,096,295.09
  5. Step 5: Solve for x
    x = 79,096,295.09/9,989.67
  6. Step 6: Final answer
    x = 7,917.81

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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.