Home / 11,207.08-15,465.09-6,490.45

Finding the Fourth Proportional to 11,207.08, 15,465.09 and 6,490.45

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Solution

The fourth proportional to 11,207.08, 15,465.09 and 6,490.45 is: 8,956.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,207.08 : 15,465.09 = 6,490.45 : x
  2. Step 2: Convert to fraction form
    11,207.08/15,465.09 = 6,490.45/x
  3. Step 3: Cross multiply
    11,207.08x = 15,465.09 × 6,490.45
  4. Step 4: Simplify right side
    11,207.08x = 100,375,393.39
  5. Step 5: Solve for x
    x = 100,375,393.39/11,207.08
  6. Step 6: Final answer
    x = 8,956.43

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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.