Home / 14,435.55-21,664.67-7,415.28

Finding the Fourth Proportional to 14,435.55, 21,664.67 and 7,415.28

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Solution

The fourth proportional to 14,435.55, 21,664.67 and 7,415.28 is: 11,128.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,435.55 : 21,664.67 = 7,415.28 : x
  2. Step 2: Convert to fraction form
    14,435.55/21,664.67 = 7,415.28/x
  3. Step 3: Cross multiply
    14,435.55x = 21,664.67 × 7,415.28
  4. Step 4: Simplify right side
    14,435.55x = 160,649,448.76
  5. Step 5: Solve for x
    x = 160,649,448.76/14,435.55
  6. Step 6: Final answer
    x = 11,128.74

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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.