Home / 14,395.40-21,606.60-7,380.64

Finding the Fourth Proportional to 14,395.40, 21,606.60 and 7,380.64

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Solution

The fourth proportional to 14,395.40, 21,606.60 and 7,380.64 is: 11,077.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,395.40 : 21,606.60 = 7,380.64 : x
  2. Step 2: Convert to fraction form
    14,395.40/21,606.60 = 7,380.64/x
  3. Step 3: Cross multiply
    14,395.40x = 21,606.60 × 7,380.64
  4. Step 4: Simplify right side
    14,395.40x = 159,470,536.22
  5. Step 5: Solve for x
    x = 159,470,536.22/14,395.40
  6. Step 6: Final answer
    x = 11,077.88

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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.