Home / 8,796.12-12,129.93-7,116.18

Finding the Fourth Proportional to 8,796.12, 12,129.93 and 7,116.18

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Solution

The fourth proportional to 8,796.12, 12,129.93 and 7,116.18 is: 9,813.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,796.12 : 12,129.93 = 7,116.18 : x
  2. Step 2: Convert to fraction form
    8,796.12/12,129.93 = 7,116.18/x
  3. Step 3: Cross multiply
    8,796.12x = 12,129.93 × 7,116.18
  4. Step 4: Simplify right side
    8,796.12x = 86,318,765.27
  5. Step 5: Solve for x
    x = 86,318,765.27/8,796.12
  6. Step 6: Final answer
    x = 9,813.28

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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.