Home / 7,147.04-10,707.76-4,405.28

Finding the Fourth Proportional to 7,147.04, 10,707.76 and 4,405.28

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Solution

The fourth proportional to 7,147.04, 10,707.76 and 4,405.28 is: 6,600.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,147.04 : 10,707.76 = 4,405.28 : x
  2. Step 2: Convert to fraction form
    7,147.04/10,707.76 = 4,405.28/x
  3. Step 3: Cross multiply
    7,147.04x = 10,707.76 × 4,405.28
  4. Step 4: Simplify right side
    7,147.04x = 47,170,680.97
  5. Step 5: Solve for x
    x = 47,170,680.97/7,147.04
  6. Step 6: Final answer
    x = 6,600.03

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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.