Home / 11,357.27-15,674.91-6,640.64

Finding the Fourth Proportional to 11,357.27, 15,674.91 and 6,640.64

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Solution

The fourth proportional to 11,357.27, 15,674.91 and 6,640.64 is: 9,165.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,357.27 : 15,674.91 = 6,640.64 : x
  2. Step 2: Convert to fraction form
    11,357.27/15,674.91 = 6,640.64/x
  3. Step 3: Cross multiply
    11,357.27x = 15,674.91 × 6,640.64
  4. Step 4: Simplify right side
    11,357.27x = 104,091,434.34
  5. Step 5: Solve for x
    x = 104,091,434.34/11,357.27
  6. Step 6: Final answer
    x = 9,165.18

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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.