Home / 7,837.80-10,816.64-5,180.59

Finding the Fourth Proportional to 7,837.80, 10,816.64 and 5,180.59

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Solution

The fourth proportional to 7,837.80, 10,816.64 and 5,180.59 is: 7,149.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,837.80 : 10,816.64 = 5,180.59 : x
  2. Step 2: Convert to fraction form
    7,837.80/10,816.64 = 5,180.59/x
  3. Step 3: Cross multiply
    7,837.80x = 10,816.64 × 5,180.59
  4. Step 4: Simplify right side
    7,837.80x = 56,036,577.02
  5. Step 5: Solve for x
    x = 56,036,577.02/7,837.80
  6. Step 6: Final answer
    x = 7,149.53

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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.