Home / 7,478.06-11,217.10-7,021.35

Finding the Fourth Proportional to 7,478.06, 11,217.10 and 7,021.35

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Solution

The fourth proportional to 7,478.06, 11,217.10 and 7,021.35 is: 10,532.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,478.06 : 11,217.10 = 7,021.35 : x
  2. Step 2: Convert to fraction form
    7,478.06/11,217.10 = 7,021.35/x
  3. Step 3: Cross multiply
    7,478.06x = 11,217.10 × 7,021.35
  4. Step 4: Simplify right side
    7,478.06x = 78,759,185.09
  5. Step 5: Solve for x
    x = 78,759,185.09/7,478.06
  6. Step 6: Final answer
    x = 10,532.03

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Similar ratio
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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.