Home / 11,897.64-16,419.78-10,135.08

Finding the Fourth Proportional to 11,897.64, 16,419.78 and 10,135.08

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Solution

The fourth proportional to 11,897.64, 16,419.78 and 10,135.08 is: 13,987.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,897.64 : 16,419.78 = 10,135.08 : x
  2. Step 2: Convert to fraction form
    11,897.64/16,419.78 = 10,135.08/x
  3. Step 3: Cross multiply
    11,897.64x = 16,419.78 × 10,135.08
  4. Step 4: Simplify right side
    11,897.64x = 166,415,783.88
  5. Step 5: Solve for x
    x = 166,415,783.88/11,897.64
  6. Step 6: Final answer
    x = 13,987.29

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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.