Home / 7,770.16-11,645.50-6,120.18

Finding the Fourth Proportional to 7,770.16, 11,645.50 and 6,120.18

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Solution

The fourth proportional to 7,770.16, 11,645.50 and 6,120.18 is: 9,172.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,770.16 : 11,645.50 = 6,120.18 : x
  2. Step 2: Convert to fraction form
    7,770.16/11,645.50 = 6,120.18/x
  3. Step 3: Cross multiply
    7,770.16x = 11,645.50 × 6,120.18
  4. Step 4: Simplify right side
    7,770.16x = 71,272,556.19
  5. Step 5: Solve for x
    x = 71,272,556.19/7,770.16
  6. Step 6: Final answer
    x = 9,172.60

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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.