Home / 7,429.12-11,157.57-6,539.97

Finding the Fourth Proportional to 7,429.12, 11,157.57 and 6,539.97

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Solution

The fourth proportional to 7,429.12, 11,157.57 and 6,539.97 is: 9,822.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,429.12 : 11,157.57 = 6,539.97 : x
  2. Step 2: Convert to fraction form
    7,429.12/11,157.57 = 6,539.97/x
  3. Step 3: Cross multiply
    7,429.12x = 11,157.57 × 6,539.97
  4. Step 4: Simplify right side
    7,429.12x = 72,970,160.81
  5. Step 5: Solve for x
    x = 72,970,160.81/7,429.12
  6. Step 6: Final answer
    x = 9,822.18

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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.