Home / 12,125.89-16,733.55-6,820.71

Finding the Fourth Proportional to 12,125.89, 16,733.55 and 6,820.71

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Solution

The fourth proportional to 12,125.89, 16,733.55 and 6,820.71 is: 9,412.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,125.89 : 16,733.55 = 6,820.71 : x
  2. Step 2: Convert to fraction form
    12,125.89/16,733.55 = 6,820.71/x
  3. Step 3: Cross multiply
    12,125.89x = 16,733.55 × 6,820.71
  4. Step 4: Simplify right side
    12,125.89x = 114,134,625.87
  5. Step 5: Solve for x
    x = 114,134,625.87/12,125.89
  6. Step 6: Final answer
    x = 9,412.47

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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.