Home / 7,817.42-11,710.40-3,651.68

Finding the Fourth Proportional to 7,817.42, 11,710.40 and 3,651.68

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Solution

The fourth proportional to 7,817.42, 11,710.40 and 3,651.68 is: 5,470.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,817.42 : 11,710.40 = 3,651.68 : x
  2. Step 2: Convert to fraction form
    7,817.42/11,710.40 = 3,651.68/x
  3. Step 3: Cross multiply
    7,817.42x = 11,710.40 × 3,651.68
  4. Step 4: Simplify right side
    7,817.42x = 42,762,633.47
  5. Step 5: Solve for x
    x = 42,762,633.47/7,817.42
  6. Step 6: Final answer
    x = 5,470.17

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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.