Home / 11,988.08-16,535.28-10,996.64

Finding the Fourth Proportional to 11,988.08, 16,535.28 and 10,996.64

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Solution

The fourth proportional to 11,988.08, 16,535.28 and 10,996.64 is: 15,167.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,988.08 : 16,535.28 = 10,996.64 : x
  2. Step 2: Convert to fraction form
    11,988.08/16,535.28 = 10,996.64/x
  3. Step 3: Cross multiply
    11,988.08x = 16,535.28 × 10,996.64
  4. Step 4: Simplify right side
    11,988.08x = 181,832,521.46
  5. Step 5: Solve for x
    x = 181,832,521.46/11,988.08
  6. Step 6: Final answer
    x = 15,167.78

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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.