Home / 12,126.48-16,717.84-8,297.40

Finding the Fourth Proportional to 12,126.48, 16,717.84 and 8,297.40

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Solution

The fourth proportional to 12,126.48, 16,717.84 and 8,297.40 is: 11,438.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,126.48 : 16,717.84 = 8,297.40 : x
  2. Step 2: Convert to fraction form
    12,126.48/16,717.84 = 8,297.40/x
  3. Step 3: Cross multiply
    12,126.48x = 16,717.84 × 8,297.40
  4. Step 4: Simplify right side
    12,126.48x = 138,714,694.24
  5. Step 5: Solve for x
    x = 138,714,694.24/12,126.48
  6. Step 6: Final answer
    x = 11,438.99

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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.