Home / 11,688.68-16,130.22-6,383.72

Finding the Fourth Proportional to 11,688.68, 16,130.22 and 6,383.72

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Solution

The fourth proportional to 11,688.68, 16,130.22 and 6,383.72 is: 8,809.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,688.68 : 16,130.22 = 6,383.72 : x
  2. Step 2: Convert to fraction form
    11,688.68/16,130.22 = 6,383.72/x
  3. Step 3: Cross multiply
    11,688.68x = 16,130.22 × 6,383.72
  4. Step 4: Simplify right side
    11,688.68x = 102,970,808.02
  5. Step 5: Solve for x
    x = 102,970,808.02/11,688.68
  6. Step 6: Final answer
    x = 8,809.45

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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.