Home / 14,442.39-21,688.29-8,928.36

Finding the Fourth Proportional to 14,442.39, 21,688.29 and 8,928.36

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Solution

The fourth proportional to 14,442.39, 21,688.29 and 8,928.36 is: 13,407.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,442.39 : 21,688.29 = 8,928.36 : x
  2. Step 2: Convert to fraction form
    14,442.39/21,688.29 = 8,928.36/x
  3. Step 3: Cross multiply
    14,442.39x = 21,688.29 × 8,928.36
  4. Step 4: Simplify right side
    14,442.39x = 193,640,860.90
  5. Step 5: Solve for x
    x = 193,640,860.90/14,442.39
  6. Step 6: Final answer
    x = 13,407.81

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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.