Home / 11,908.12-16,421.52-10,966.36

Finding the Fourth Proportional to 11,908.12, 16,421.52 and 10,966.36

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Solution

The fourth proportional to 11,908.12, 16,421.52 and 10,966.36 is: 15,122.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,908.12 : 16,421.52 = 10,966.36 : x
  2. Step 2: Convert to fraction form
    11,908.12/16,421.52 = 10,966.36/x
  3. Step 3: Cross multiply
    11,908.12x = 16,421.52 × 10,966.36
  4. Step 4: Simplify right side
    11,908.12x = 180,084,300.07
  5. Step 5: Solve for x
    x = 180,084,300.07/11,908.12
  6. Step 6: Final answer
    x = 15,122.82

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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.