Home / 7,788.40-11,682.60-7,606.15

Finding the Fourth Proportional to 7,788.40, 11,682.60 and 7,606.15

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Solution

The fourth proportional to 7,788.40, 11,682.60 and 7,606.15 is: 11,409.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,788.40 : 11,682.60 = 7,606.15 : x
  2. Step 2: Convert to fraction form
    7,788.40/11,682.60 = 7,606.15/x
  3. Step 3: Cross multiply
    7,788.40x = 11,682.60 × 7,606.15
  4. Step 4: Simplify right side
    7,788.40x = 88,859,607.99
  5. Step 5: Solve for x
    x = 88,859,607.99/7,788.40
  6. Step 6: Final answer
    x = 11,409.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.