Home / 12,372.16-17,073.60-6,783.28

Finding the Fourth Proportional to 12,372.16, 17,073.60 and 6,783.28

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Solution

The fourth proportional to 12,372.16, 17,073.60 and 6,783.28 is: 9,360.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,372.16 : 17,073.60 = 6,783.28 : x
  2. Step 2: Convert to fraction form
    12,372.16/17,073.60 = 6,783.28/x
  3. Step 3: Cross multiply
    12,372.16x = 17,073.60 × 6,783.28
  4. Step 4: Simplify right side
    12,372.16x = 115,815,009.41
  5. Step 5: Solve for x
    x = 115,815,009.41/12,372.16
  6. Step 6: Final answer
    x = 9,360.94

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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.