Home / 9,155.58-13,721.21-4,771.86

Finding the Fourth Proportional to 9,155.58, 13,721.21 and 4,771.86

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Solution

The fourth proportional to 9,155.58, 13,721.21 and 4,771.86 is: 7,151.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,155.58 : 13,721.21 = 4,771.86 : x
  2. Step 2: Convert to fraction form
    9,155.58/13,721.21 = 4,771.86/x
  3. Step 3: Cross multiply
    9,155.58x = 13,721.21 × 4,771.86
  4. Step 4: Simplify right side
    9,155.58x = 65,475,693.15
  5. Step 5: Solve for x
    x = 65,475,693.15/9,155.58
  6. Step 6: Final answer
    x = 7,151.45

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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.