Home / 11,939.60-16,475.60-6,634.08

Finding the Fourth Proportional to 11,939.60, 16,475.60 and 6,634.08

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Solution

The fourth proportional to 11,939.60, 16,475.60 and 6,634.08 is: 9,154.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,939.60 : 16,475.60 = 6,634.08 : x
  2. Step 2: Convert to fraction form
    11,939.60/16,475.60 = 6,634.08/x
  3. Step 3: Cross multiply
    11,939.60x = 16,475.60 × 6,634.08
  4. Step 4: Simplify right side
    11,939.60x = 109,300,448.45
  5. Step 5: Solve for x
    x = 109,300,448.45/11,939.60
  6. Step 6: Final answer
    x = 9,154.45

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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.