Home / 11,018.80-16,506.60-6,623.20

Finding the Fourth Proportional to 11,018.80, 16,506.60 and 6,623.20

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Solution

The fourth proportional to 11,018.80, 16,506.60 and 6,623.20 is: 9,921.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,018.80 : 16,506.60 = 6,623.20 : x
  2. Step 2: Convert to fraction form
    11,018.80/16,506.60 = 6,623.20/x
  3. Step 3: Cross multiply
    11,018.80x = 16,506.60 × 6,623.20
  4. Step 4: Simplify right side
    11,018.80x = 109,326,513.12
  5. Step 5: Solve for x
    x = 109,326,513.12/11,018.80
  6. Step 6: Final answer
    x = 9,921.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.