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Finding the Fourth Proportional to 7,798.02, 11,686.80 and 6,808.32

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Solution

The fourth proportional to 7,798.02, 11,686.80 and 6,808.32 is: 10,203.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,798.02 : 11,686.80 = 6,808.32 : x
  2. Step 2: Convert to fraction form
    7,798.02/11,686.80 = 6,808.32/x
  3. Step 3: Cross multiply
    7,798.02x = 11,686.80 × 6,808.32
  4. Step 4: Simplify right side
    7,798.02x = 79,567,461.41
  5. Step 5: Solve for x
    x = 79,567,461.41/7,798.02
  6. Step 6: Final answer
    x = 10,203.54

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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.