Home / 11,685.17-16,126.95-6,650.61

Finding the Fourth Proportional to 11,685.17, 16,126.95 and 6,650.61

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Solution

The fourth proportional to 11,685.17, 16,126.95 and 6,650.61 is: 9,178.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,685.17 : 16,126.95 = 6,650.61 : x
  2. Step 2: Convert to fraction form
    11,685.17/16,126.95 = 6,650.61/x
  3. Step 3: Cross multiply
    11,685.17x = 16,126.95 × 6,650.61
  4. Step 4: Simplify right side
    11,685.17x = 107,254,054.94
  5. Step 5: Solve for x
    x = 107,254,054.94/11,685.17
  6. Step 6: Final answer
    x = 9,178.65

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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.