Home / 11,612.40-17,333.58-9,979.44

Finding the Fourth Proportional to 11,612.40, 17,333.58 and 9,979.44

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Solution

The fourth proportional to 11,612.40, 17,333.58 and 9,979.44 is: 14,896.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,612.40 : 17,333.58 = 9,979.44 : x
  2. Step 2: Convert to fraction form
    11,612.40/17,333.58 = 9,979.44/x
  3. Step 3: Cross multiply
    11,612.40x = 17,333.58 × 9,979.44
  4. Step 4: Simplify right side
    11,612.40x = 172,979,421.60
  5. Step 5: Solve for x
    x = 172,979,421.60/11,612.40
  6. Step 6: Final answer
    x = 14,896.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.