Home / 7,772.87-11,643.71-3,607.17

Finding the Fourth Proportional to 7,772.87, 11,643.71 and 3,607.17

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Solution

The fourth proportional to 7,772.87, 11,643.71 and 3,607.17 is: 5,403.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,772.87 : 11,643.71 = 3,607.17 : x
  2. Step 2: Convert to fraction form
    7,772.87/11,643.71 = 3,607.17/x
  3. Step 3: Cross multiply
    7,772.87x = 11,643.71 × 3,607.17
  4. Step 4: Simplify right side
    7,772.87x = 42,000,823.36
  5. Step 5: Solve for x
    x = 42,000,823.36/7,772.87
  6. Step 6: Final answer
    x = 5,403.52

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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.