Home / 7,904.75-11,788.40-7,798.82

Finding the Fourth Proportional to 7,904.75, 11,788.40 and 7,798.82

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Solution

The fourth proportional to 7,904.75, 11,788.40 and 7,798.82 is: 11,630.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,904.75 : 11,788.40 = 7,798.82 : x
  2. Step 2: Convert to fraction form
    7,904.75/11,788.40 = 7,798.82/x
  3. Step 3: Cross multiply
    7,904.75x = 11,788.40 × 7,798.82
  4. Step 4: Simplify right side
    7,904.75x = 91,935,570.24
  5. Step 5: Solve for x
    x = 91,935,570.24/7,904.75
  6. Step 6: Final answer
    x = 11,630.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.