Home / 7,857.60-11,784.96-3,177.36

Finding the Fourth Proportional to 7,857.60, 11,784.96 and 3,177.36

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Solution

The fourth proportional to 7,857.60, 11,784.96 and 3,177.36 is: 4,765.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,857.60 : 11,784.96 = 3,177.36 : x
  2. Step 2: Convert to fraction form
    7,857.60/11,784.96 = 3,177.36/x
  3. Step 3: Cross multiply
    7,857.60x = 11,784.96 × 3,177.36
  4. Step 4: Simplify right side
    7,857.60x = 37,445,060.51
  5. Step 5: Solve for x
    x = 37,445,060.51/7,857.60
  6. Step 6: Final answer
    x = 4,765.46

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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.