Home / 7,772.25-11,663.64-3,387.18

Finding the Fourth Proportional to 7,772.25, 11,663.64 and 3,387.18

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Solution

The fourth proportional to 7,772.25, 11,663.64 and 3,387.18 is: 5,083.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,772.25 : 11,663.64 = 3,387.18 : x
  2. Step 2: Convert to fraction form
    7,772.25/11,663.64 = 3,387.18/x
  3. Step 3: Cross multiply
    7,772.25x = 11,663.64 × 3,387.18
  4. Step 4: Simplify right side
    7,772.25x = 39,506,848.14
  5. Step 5: Solve for x
    x = 39,506,848.14/7,772.25
  6. Step 6: Final answer
    x = 5,083.06

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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.