Home / 9,372.40-14,051.66-3,128.76

Finding the Fourth Proportional to 9,372.40, 14,051.66 and 3,128.76

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Solution

The fourth proportional to 9,372.40, 14,051.66 and 3,128.76 is: 4,690.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,372.40 : 14,051.66 = 3,128.76 : x
  2. Step 2: Convert to fraction form
    9,372.40/14,051.66 = 3,128.76/x
  3. Step 3: Cross multiply
    9,372.40x = 14,051.66 × 3,128.76
  4. Step 4: Simplify right side
    9,372.40x = 43,964,256.10
  5. Step 5: Solve for x
    x = 43,964,256.10/9,372.40
  6. Step 6: Final answer
    x = 4,690.82

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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.