Home / 9,403.12-12,976.68-5,212

Finding the Fourth Proportional to 9,403.12, 12,976.68 and 5,212

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Solution

The fourth proportional to 9,403.12, 12,976.68 and 5,212 is: 7,192.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,403.12 : 12,976.68 = 5,212 : x
  2. Step 2: Convert to fraction form
    9,403.12/12,976.68 = 5,212/x
  3. Step 3: Cross multiply
    9,403.12x = 12,976.68 × 5,212
  4. Step 4: Simplify right side
    9,403.12x = 67,634,456.16
  5. Step 5: Solve for x
    x = 67,634,456.16/9,403.12
  6. Step 6: Final answer
    x = 7,192.77

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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.