Home / 11,270.21-15,548.49-6,488.51

Finding the Fourth Proportional to 11,270.21, 15,548.49 and 6,488.51

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Solution

The fourth proportional to 11,270.21, 15,548.49 and 6,488.51 is: 8,951.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,270.21 : 15,548.49 = 6,488.51 : x
  2. Step 2: Convert to fraction form
    11,270.21/15,548.49 = 6,488.51/x
  3. Step 3: Cross multiply
    11,270.21x = 15,548.49 × 6,488.51
  4. Step 4: Simplify right side
    11,270.21x = 100,886,455.11
  5. Step 5: Solve for x
    x = 100,886,455.11/11,270.21
  6. Step 6: Final answer
    x = 8,951.61

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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.