Home / 11,690.79-16,133.76-6,385.83

Finding the Fourth Proportional to 11,690.79, 16,133.76 and 6,385.83

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Solution

The fourth proportional to 11,690.79, 16,133.76 and 6,385.83 is: 8,812.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,690.79 : 16,133.76 = 6,385.83 : x
  2. Step 2: Convert to fraction form
    11,690.79/16,133.76 = 6,385.83/x
  3. Step 3: Cross multiply
    11,690.79x = 16,133.76 × 6,385.83
  4. Step 4: Simplify right side
    11,690.79x = 103,027,448.62
  5. Step 5: Solve for x
    x = 103,027,448.62/11,690.79
  6. Step 6: Final answer
    x = 8,812.70

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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.