Home / 15,561.35-23,351.59-8,171.11

Finding the Fourth Proportional to 15,561.35, 23,351.59 and 8,171.11

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Solution

The fourth proportional to 15,561.35, 23,351.59 and 8,171.11 is: 12,261.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,561.35 : 23,351.59 = 8,171.11 : x
  2. Step 2: Convert to fraction form
    15,561.35/23,351.59 = 8,171.11/x
  3. Step 3: Cross multiply
    15,561.35x = 23,351.59 × 8,171.11
  4. Step 4: Simplify right side
    15,561.35x = 190,808,410.56
  5. Step 5: Solve for x
    x = 190,808,410.56/15,561.35
  6. Step 6: Final answer
    x = 12,261.69

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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.