Home / 14,221.48-21,335.25-5,456.32

Finding the Fourth Proportional to 14,221.48, 21,335.25 and 5,456.32

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Solution

The fourth proportional to 14,221.48, 21,335.25 and 5,456.32 is: 8,185.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,221.48 : 21,335.25 = 5,456.32 : x
  2. Step 2: Convert to fraction form
    14,221.48/21,335.25 = 5,456.32/x
  3. Step 3: Cross multiply
    14,221.48x = 21,335.25 × 5,456.32
  4. Step 4: Simplify right side
    14,221.48x = 116,411,951.28
  5. Step 5: Solve for x
    x = 116,411,951.28/14,221.48
  6. Step 6: Final answer
    x = 8,185.64

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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.