Home / 7,980.98-11,013.91-4,624.88

Finding the Fourth Proportional to 7,980.98, 11,013.91 and 4,624.88

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Solution

The fourth proportional to 7,980.98, 11,013.91 and 4,624.88 is: 6,382.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,980.98 : 11,013.91 = 4,624.88 : x
  2. Step 2: Convert to fraction form
    7,980.98/11,013.91 = 4,624.88/x
  3. Step 3: Cross multiply
    7,980.98x = 11,013.91 × 4,624.88
  4. Step 4: Simplify right side
    7,980.98x = 50,937,945.45
  5. Step 5: Solve for x
    x = 50,937,945.45/7,980.98
  6. Step 6: Final answer
    x = 6,382.42

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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.