Home / 15,561.39-23,320.22-6,777.89

Finding the Fourth Proportional to 15,561.39, 23,320.22 and 6,777.89

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Solution

The fourth proportional to 15,561.39, 23,320.22 and 6,777.89 is: 10,157.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,561.39 : 23,320.22 = 6,777.89 : x
  2. Step 2: Convert to fraction form
    15,561.39/23,320.22 = 6,777.89/x
  3. Step 3: Cross multiply
    15,561.39x = 23,320.22 × 6,777.89
  4. Step 4: Simplify right side
    15,561.39x = 158,061,735.45
  5. Step 5: Solve for x
    x = 158,061,735.45/15,561.39
  6. Step 6: Final answer
    x = 10,157.30

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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.