Home / 11,649.60-16,076.40-6,613.80

Finding the Fourth Proportional to 11,649.60, 16,076.40 and 6,613.80

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Solution

The fourth proportional to 11,649.60, 16,076.40 and 6,613.80 is: 9,127.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,649.60 : 16,076.40 = 6,613.80 : x
  2. Step 2: Convert to fraction form
    11,649.60/16,076.40 = 6,613.80/x
  3. Step 3: Cross multiply
    11,649.60x = 16,076.40 × 6,613.80
  4. Step 4: Simplify right side
    11,649.60x = 106,326,094.32
  5. Step 5: Solve for x
    x = 106,326,094.32/11,649.60
  6. Step 6: Final answer
    x = 9,127.02

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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.