Home / 15,676.84-21,637.38-9,392.86

Finding the Fourth Proportional to 15,676.84, 21,637.38 and 9,392.86

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Solution

The fourth proportional to 15,676.84, 21,637.38 and 9,392.86 is: 12,964.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,676.84 : 21,637.38 = 9,392.86 : x
  2. Step 2: Convert to fraction form
    15,676.84/21,637.38 = 9,392.86/x
  3. Step 3: Cross multiply
    15,676.84x = 21,637.38 × 9,392.86
  4. Step 4: Simplify right side
    15,676.84x = 203,236,890.54
  5. Step 5: Solve for x
    x = 203,236,890.54/15,676.84
  6. Step 6: Final answer
    x = 12,964.15

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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.