Home / 8,020.23-11,070.99-7,179.45

Finding the Fourth Proportional to 8,020.23, 11,070.99 and 7,179.45

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Solution

The fourth proportional to 8,020.23, 11,070.99 and 7,179.45 is: 9,910.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,020.23 : 11,070.99 = 7,179.45 : x
  2. Step 2: Convert to fraction form
    8,020.23/11,070.99 = 7,179.45/x
  3. Step 3: Cross multiply
    8,020.23x = 11,070.99 × 7,179.45
  4. Step 4: Simplify right side
    8,020.23x = 79,483,619.16
  5. Step 5: Solve for x
    x = 79,483,619.16/8,020.23
  6. Step 6: Final answer
    x = 9,910.39

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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.