Home / 7,980.14-11,005.40-4,996.24

Finding the Fourth Proportional to 7,980.14, 11,005.40 and 4,996.24

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Solution

The fourth proportional to 7,980.14, 11,005.40 and 4,996.24 is: 6,890.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,980.14 : 11,005.40 = 4,996.24 : x
  2. Step 2: Convert to fraction form
    7,980.14/11,005.40 = 4,996.24/x
  3. Step 3: Cross multiply
    7,980.14x = 11,005.40 × 4,996.24
  4. Step 4: Simplify right side
    7,980.14x = 54,985,604.67
  5. Step 5: Solve for x
    x = 54,985,604.67/7,980.14
  6. Step 6: Final answer
    x = 6,890.30

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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.