Home / 7,687.74-11,522.65-3,528.19

Finding the Fourth Proportional to 7,687.74, 11,522.65 and 3,528.19

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Solution

The fourth proportional to 7,687.74, 11,522.65 and 3,528.19 is: 5,288.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,687.74 : 11,522.65 = 3,528.19 : x
  2. Step 2: Convert to fraction form
    7,687.74/11,522.65 = 3,528.19/x
  3. Step 3: Cross multiply
    7,687.74x = 11,522.65 × 3,528.19
  4. Step 4: Simplify right side
    7,687.74x = 40,654,107.32
  5. Step 5: Solve for x
    x = 40,654,107.32/7,687.74
  6. Step 6: Final answer
    x = 5,288.17

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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.