Home / 7,639.11-11,456.54-5,188.96

Finding the Fourth Proportional to 7,639.11, 11,456.54 and 5,188.96

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Solution

The fourth proportional to 7,639.11, 11,456.54 and 5,188.96 is: 7,782.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639.11 : 11,456.54 = 5,188.96 : x
  2. Step 2: Convert to fraction form
    7,639.11/11,456.54 = 5,188.96/x
  3. Step 3: Cross multiply
    7,639.11x = 11,456.54 × 5,188.96
  4. Step 4: Simplify right side
    7,639.11x = 59,447,535.63
  5. Step 5: Solve for x
    x = 59,447,535.63/7,639.11
  6. Step 6: Final answer
    x = 7,782.00

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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.