Home / 8,957.58-12,362.34-5,179.56

Finding the Fourth Proportional to 8,957.58, 12,362.34 and 5,179.56

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Solution

The fourth proportional to 8,957.58, 12,362.34 and 5,179.56 is: 7,148.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,957.58 : 12,362.34 = 5,179.56 : x
  2. Step 2: Convert to fraction form
    8,957.58/12,362.34 = 5,179.56/x
  3. Step 3: Cross multiply
    8,957.58x = 12,362.34 × 5,179.56
  4. Step 4: Simplify right side
    8,957.58x = 64,031,481.77
  5. Step 5: Solve for x
    x = 64,031,481.77/8,957.58
  6. Step 6: Final answer
    x = 7,148.30

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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.