Home / 11,649.40-16,079.58-7,925.56

Finding the Fourth Proportional to 11,649.40, 16,079.58 and 7,925.56

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Solution

The fourth proportional to 11,649.40, 16,079.58 and 7,925.56 is: 10,939.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,649.40 : 16,079.58 = 7,925.56 : x
  2. Step 2: Convert to fraction form
    11,649.40/16,079.58 = 7,925.56/x
  3. Step 3: Cross multiply
    11,649.40x = 16,079.58 × 7,925.56
  4. Step 4: Simplify right side
    11,649.40x = 127,439,676.06
  5. Step 5: Solve for x
    x = 127,439,676.06/11,649.40
  6. Step 6: Final answer
    x = 10,939.59

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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.