Home / 11,689.02-16,130.76-6,383.84

Finding the Fourth Proportional to 11,689.02, 16,130.76 and 6,383.84

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Solution

The fourth proportional to 11,689.02, 16,130.76 and 6,383.84 is: 8,809.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,689.02 : 16,130.76 = 6,383.84 : x
  2. Step 2: Convert to fraction form
    11,689.02/16,130.76 = 6,383.84/x
  3. Step 3: Cross multiply
    11,689.02x = 16,130.76 × 6,383.84
  4. Step 4: Simplify right side
    11,689.02x = 102,976,110.26
  5. Step 5: Solve for x
    x = 102,976,110.26/11,689.02
  6. Step 6: Final answer
    x = 8,809.64

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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.