Home / 7,976.98-11,008.07-4,620.40

Finding the Fourth Proportional to 7,976.98, 11,008.07 and 4,620.40

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Solution

The fourth proportional to 7,976.98, 11,008.07 and 4,620.40 is: 6,376.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,976.98 : 11,008.07 = 4,620.40 : x
  2. Step 2: Convert to fraction form
    7,976.98/11,008.07 = 4,620.40/x
  3. Step 3: Cross multiply
    7,976.98x = 11,008.07 × 4,620.40
  4. Step 4: Simplify right side
    7,976.98x = 50,861,663.53
  5. Step 5: Solve for x
    x = 50,861,663.53/7,976.98
  6. Step 6: Final answer
    x = 6,376.06

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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.