Home / 14,221.08-21,342.51-6,435.36

Finding the Fourth Proportional to 14,221.08, 21,342.51 and 6,435.36

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Solution

The fourth proportional to 14,221.08, 21,342.51 and 6,435.36 is: 9,657.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,221.08 : 21,342.51 = 6,435.36 : x
  2. Step 2: Convert to fraction form
    14,221.08/21,342.51 = 6,435.36/x
  3. Step 3: Cross multiply
    14,221.08x = 21,342.51 × 6,435.36
  4. Step 4: Simplify right side
    14,221.08x = 137,346,735.15
  5. Step 5: Solve for x
    x = 137,346,735.15/14,221.08
  6. Step 6: Final answer
    x = 9,657.97

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1.5x scale

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.