Home / 11,961.28-16,506.66-7,242.28

Finding the Fourth Proportional to 11,961.28, 16,506.66 and 7,242.28

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Solution

The fourth proportional to 11,961.28, 16,506.66 and 7,242.28 is: 9,994.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,961.28 : 16,506.66 = 7,242.28 : x
  2. Step 2: Convert to fraction form
    11,961.28/16,506.66 = 7,242.28/x
  3. Step 3: Cross multiply
    11,961.28x = 16,506.66 × 7,242.28
  4. Step 4: Simplify right side
    11,961.28x = 119,545,853.58
  5. Step 5: Solve for x
    x = 119,545,853.58/11,961.28
  6. Step 6: Final answer
    x = 9,994.40

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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.