Home / 15,546.30-21,456.30-9,262.32

Finding the Fourth Proportional to 15,546.30, 21,456.30 and 9,262.32

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Solution

The fourth proportional to 15,546.30, 21,456.30 and 9,262.32 is: 12,783.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,546.30 : 21,456.30 = 9,262.32 : x
  2. Step 2: Convert to fraction form
    15,546.30/21,456.30 = 9,262.32/x
  3. Step 3: Cross multiply
    15,546.30x = 21,456.30 × 9,262.32
  4. Step 4: Simplify right side
    15,546.30x = 198,735,116.62
  5. Step 5: Solve for x
    x = 198,735,116.62/15,546.30
  6. Step 6: Final answer
    x = 12,783.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.