Home / 10,622.02-15,917.88-7,826.71

Finding the Fourth Proportional to 10,622.02, 15,917.88 and 7,826.71

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Solution

The fourth proportional to 10,622.02, 15,917.88 and 7,826.71 is: 11,728.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,622.02 : 15,917.88 = 7,826.71 : x
  2. Step 2: Convert to fraction form
    10,622.02/15,917.88 = 7,826.71/x
  3. Step 3: Cross multiply
    10,622.02x = 15,917.88 × 7,826.71
  4. Step 4: Simplify right side
    10,622.02x = 124,584,630.57
  5. Step 5: Solve for x
    x = 124,584,630.57/10,622.02
  6. Step 6: Final answer
    x = 11,728.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.