Home / 6,511.60-9,767.40-5,221.36

Finding the Fourth Proportional to 6,511.60, 9,767.40 and 5,221.36

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Solution

The fourth proportional to 6,511.60, 9,767.40 and 5,221.36 is: 7,832.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,511.60 : 9,767.40 = 5,221.36 : x
  2. Step 2: Convert to fraction form
    6,511.60/9,767.40 = 5,221.36/x
  3. Step 3: Cross multiply
    6,511.60x = 9,767.40 × 5,221.36
  4. Step 4: Simplify right side
    6,511.60x = 50,999,111.66
  5. Step 5: Solve for x
    x = 50,999,111.66/6,511.60
  6. Step 6: Final answer
    x = 7,832.04

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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.