Home / 12,125.84-16,733.52-6,820.70

Finding the Fourth Proportional to 12,125.84, 16,733.52 and 6,820.70

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Solution

The fourth proportional to 12,125.84, 16,733.52 and 6,820.70 is: 9,412.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,125.84 : 16,733.52 = 6,820.70 : x
  2. Step 2: Convert to fraction form
    12,125.84/16,733.52 = 6,820.70/x
  3. Step 3: Cross multiply
    12,125.84x = 16,733.52 × 6,820.70
  4. Step 4: Simplify right side
    12,125.84x = 114,134,319.86
  5. Step 5: Solve for x
    x = 114,134,319.86/12,125.84
  6. Step 6: Final answer
    x = 9,412.49

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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.