Home / 11,690.19-16,130.88-6,654.11

Finding the Fourth Proportional to 11,690.19, 16,130.88 and 6,654.11

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Solution

The fourth proportional to 11,690.19, 16,130.88 and 6,654.11 is: 9,181.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,690.19 : 16,130.88 = 6,654.11 : x
  2. Step 2: Convert to fraction form
    11,690.19/16,130.88 = 6,654.11/x
  3. Step 3: Cross multiply
    11,690.19x = 16,130.88 × 6,654.11
  4. Step 4: Simplify right side
    11,690.19x = 107,336,569.26
  5. Step 5: Solve for x
    x = 107,336,569.26/11,690.19
  6. Step 6: Final answer
    x = 9,181.76

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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.