Home / 9,208.44-12,712.45-7,187.51

Finding the Fourth Proportional to 9,208.44, 12,712.45 and 7,187.51

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Solution

The fourth proportional to 9,208.44, 12,712.45 and 7,187.51 is: 9,922.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,208.44 : 12,712.45 = 7,187.51 : x
  2. Step 2: Convert to fraction form
    9,208.44/12,712.45 = 7,187.51/x
  3. Step 3: Cross multiply
    9,208.44x = 12,712.45 × 7,187.51
  4. Step 4: Simplify right side
    9,208.44x = 91,370,861.50
  5. Step 5: Solve for x
    x = 91,370,861.50/9,208.44
  6. Step 6: Final answer
    x = 9,922.51

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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.