Home / 8,180.06-11,282.07-5,490.40

Finding the Fourth Proportional to 8,180.06, 11,282.07 and 5,490.40

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Solution

The fourth proportional to 8,180.06, 11,282.07 and 5,490.40 is: 7,572.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,180.06 : 11,282.07 = 5,490.40 : x
  2. Step 2: Convert to fraction form
    8,180.06/11,282.07 = 5,490.40/x
  3. Step 3: Cross multiply
    8,180.06x = 11,282.07 × 5,490.40
  4. Step 4: Simplify right side
    8,180.06x = 61,943,035.35
  5. Step 5: Solve for x
    x = 61,943,035.35/8,180.06
  6. Step 6: Final answer
    x = 7,572.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.