Home / 9,147.38-13,710-4,210.22

Finding the Fourth Proportional to 9,147.38, 13,710 and 4,210.22

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Solution

The fourth proportional to 9,147.38, 13,710 and 4,210.22 is: 6,310.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,147.38 : 13,710 = 4,210.22 : x
  2. Step 2: Convert to fraction form
    9,147.38/13,710 = 4,210.22/x
  3. Step 3: Cross multiply
    9,147.38x = 13,710 × 4,210.22
  4. Step 4: Simplify right side
    9,147.38x = 57,722,116.20
  5. Step 5: Solve for x
    x = 57,722,116.20/9,147.38
  6. Step 6: Final answer
    x = 6,310.23

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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.