Home / 15,714.45-21,680.55-9,743.97

Finding the Fourth Proportional to 15,714.45, 21,680.55 and 9,743.97

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Solution

The fourth proportional to 15,714.45, 21,680.55 and 9,743.97 is: 13,443.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,714.45 : 21,680.55 = 9,743.97 : x
  2. Step 2: Convert to fraction form
    15,714.45/21,680.55 = 9,743.97/x
  3. Step 3: Cross multiply
    15,714.45x = 21,680.55 × 9,743.97
  4. Step 4: Simplify right side
    15,714.45x = 211,254,580.06
  5. Step 5: Solve for x
    x = 211,254,580.06/15,714.45
  6. Step 6: Final answer
    x = 13,443.33

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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.