Home / 15,556.20-23,316.38-7,770.60

Finding the Fourth Proportional to 15,556.20, 23,316.38 and 7,770.60

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Solution

The fourth proportional to 15,556.20, 23,316.38 and 7,770.60 is: 11,646.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,556.20 : 23,316.38 = 7,770.60 : x
  2. Step 2: Convert to fraction form
    15,556.20/23,316.38 = 7,770.60/x
  3. Step 3: Cross multiply
    15,556.20x = 23,316.38 × 7,770.60
  4. Step 4: Simplify right side
    15,556.20x = 181,182,262.43
  5. Step 5: Solve for x
    x = 181,182,262.43/15,556.20
  6. Step 6: Final answer
    x = 11,646.95

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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.