Home / 11,985.01-16,540.54-7,206.50

Finding the Fourth Proportional to 11,985.01, 16,540.54 and 7,206.50

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Solution

The fourth proportional to 11,985.01, 16,540.54 and 7,206.50 is: 9,945.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,985.01 : 16,540.54 = 7,206.50 : x
  2. Step 2: Convert to fraction form
    11,985.01/16,540.54 = 7,206.50/x
  3. Step 3: Cross multiply
    11,985.01x = 16,540.54 × 7,206.50
  4. Step 4: Simplify right side
    11,985.01x = 119,199,424.85
  5. Step 5: Solve for x
    x = 119,199,424.85/11,985.01
  6. Step 6: Final answer
    x = 9,945.71

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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.