Home / 11,980.30-16,532.16-6,601.68

Finding the Fourth Proportional to 11,980.30, 16,532.16 and 6,601.68

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Solution

The fourth proportional to 11,980.30, 16,532.16 and 6,601.68 is: 9,109.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,980.30 : 16,532.16 = 6,601.68 : x
  2. Step 2: Convert to fraction form
    11,980.30/16,532.16 = 6,601.68/x
  3. Step 3: Cross multiply
    11,980.30x = 16,532.16 × 6,601.68
  4. Step 4: Simplify right side
    11,980.30x = 109,140,030.03
  5. Step 5: Solve for x
    x = 109,140,030.03/11,980.30
  6. Step 6: Final answer
    x = 9,109.96

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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.