Home / 12,108.90-16,710.71-6,803.61

Finding the Fourth Proportional to 12,108.90, 16,710.71 and 6,803.61

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Solution

The fourth proportional to 12,108.90, 16,710.71 and 6,803.61 is: 9,389.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,108.90 : 16,710.71 = 6,803.61 : x
  2. Step 2: Convert to fraction form
    12,108.90/16,710.71 = 6,803.61/x
  3. Step 3: Cross multiply
    12,108.90x = 16,710.71 × 6,803.61
  4. Step 4: Simplify right side
    12,108.90x = 113,693,153.66
  5. Step 5: Solve for x
    x = 113,693,153.66/12,108.90
  6. Step 6: Final answer
    x = 9,389.22

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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.