Home / 9,159.93-13,721.90-4,771.53

Finding the Fourth Proportional to 9,159.93, 13,721.90 and 4,771.53

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Solution

The fourth proportional to 9,159.93, 13,721.90 and 4,771.53 is: 7,147.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,159.93 : 13,721.90 = 4,771.53 : x
  2. Step 2: Convert to fraction form
    9,159.93/13,721.90 = 4,771.53/x
  3. Step 3: Cross multiply
    9,159.93x = 13,721.90 × 4,771.53
  4. Step 4: Simplify right side
    9,159.93x = 65,474,433.65
  5. Step 5: Solve for x
    x = 65,474,433.65/9,159.93
  6. Step 6: Final answer
    x = 7,147.92

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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.