Home / 9,645.12-14,466.38-2,720.16

Finding the Fourth Proportional to 9,645.12, 14,466.38 and 2,720.16

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Solution

The fourth proportional to 9,645.12, 14,466.38 and 2,720.16 is: 4,079.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,645.12 : 14,466.38 = 2,720.16 : x
  2. Step 2: Convert to fraction form
    9,645.12/14,466.38 = 2,720.16/x
  3. Step 3: Cross multiply
    9,645.12x = 14,466.38 × 2,720.16
  4. Step 4: Simplify right side
    9,645.12x = 39,350,868.22
  5. Step 5: Solve for x
    x = 39,350,868.22/9,645.12
  6. Step 6: Final answer
    x = 4,079.87

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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.