Home / 8,479.56-11,703.14-5,122.85

Finding the Fourth Proportional to 8,479.56, 11,703.14 and 5,122.85

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Solution

The fourth proportional to 8,479.56, 11,703.14 and 5,122.85 is: 7,070.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,479.56 : 11,703.14 = 5,122.85 : x
  2. Step 2: Convert to fraction form
    8,479.56/11,703.14 = 5,122.85/x
  3. Step 3: Cross multiply
    8,479.56x = 11,703.14 × 5,122.85
  4. Step 4: Simplify right side
    8,479.56x = 59,953,346.62
  5. Step 5: Solve for x
    x = 59,953,346.62/8,479.56
  6. Step 6: Final answer
    x = 7,070.34

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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.