Home / 11,209.32-16,818.78-4,640.28

Finding the Fourth Proportional to 11,209.32, 16,818.78 and 4,640.28

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Solution

The fourth proportional to 11,209.32, 16,818.78 and 4,640.28 is: 6,962.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,209.32 : 16,818.78 = 4,640.28 : x
  2. Step 2: Convert to fraction form
    11,209.32/16,818.78 = 4,640.28/x
  3. Step 3: Cross multiply
    11,209.32x = 16,818.78 × 4,640.28
  4. Step 4: Simplify right side
    11,209.32x = 78,043,848.46
  5. Step 5: Solve for x
    x = 78,043,848.46/11,209.32
  6. Step 6: Final answer
    x = 6,962.41

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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.