Home / 11,938.01-16,468.83-7,155.66

Finding the Fourth Proportional to 11,938.01, 16,468.83 and 7,155.66

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Solution

The fourth proportional to 11,938.01, 16,468.83 and 7,155.66 is: 9,871.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,938.01 : 16,468.83 = 7,155.66 : x
  2. Step 2: Convert to fraction form
    11,938.01/16,468.83 = 7,155.66/x
  3. Step 3: Cross multiply
    11,938.01x = 16,468.83 × 7,155.66
  4. Step 4: Simplify right side
    11,938.01x = 117,845,348.08
  5. Step 5: Solve for x
    x = 117,845,348.08/11,938.01
  6. Step 6: Final answer
    x = 9,871.44

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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.