Home / 15,346.67-21,172.41-8,630.75

Finding the Fourth Proportional to 15,346.67, 21,172.41 and 8,630.75

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Solution

The fourth proportional to 15,346.67, 21,172.41 and 8,630.75 is: 11,907.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,346.67 : 21,172.41 = 8,630.75 : x
  2. Step 2: Convert to fraction form
    15,346.67/21,172.41 = 8,630.75/x
  3. Step 3: Cross multiply
    15,346.67x = 21,172.41 × 8,630.75
  4. Step 4: Simplify right side
    15,346.67x = 182,733,777.61
  5. Step 5: Solve for x
    x = 182,733,777.61/15,346.67
  6. Step 6: Final answer
    x = 11,907.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.